SINGLE
PAIR
Free Shipping Over $75
365-Day Guarantee
4.6 Star Reviews
Sleep Friendly
Hypoallergenic
Waterproof
DESCRIPTION
She's cute, she's versatile, she's out of the world! Similar to our original Lunar Phase Flat Back Stud, this version is quite a bit smaller and it features an opal, rather than a clear zirconia.
This listing is for a single ASTM F136 implant grade titanium push-pin flat back stud.
Sold individually.
Measurements: Post measures at 1/4 inch (6mm) length, with a 4mm disc on back. 18 GA (1mm). Flower is approx. 6mm in diameter. Refer to listing images to get an idea of the size of the stud on-ear. Check your own ear measurement before ordering.
Colors available: 18K PVD Gold Plated Titanium, Titanium, Synthetic Opal
Care: These are tarnish-proof and waterproof. With all items of this material, if you come into contact with chlorine or salt water, cream, lotion, perfumes, etc. Rinse in water and dry if this does happen. When not wearing, store in a dry, cool place.
CARE
Soak your studs in a bowl filled with warm water and a few drops of dish soap for about 15 minutes.
Gently scrub your jewelry with a q tip or soft cloth to remove any buildup or debris.
Store in a safe place when not in use.
Handle with care.
365 DAY GUARANTEE
At Cords Club, we are committed to providing durable and high-quality products. That's why we offer a 365 Day Guarantee on all our items. If you experience any defects or issues within the first year, simply contact us for a hassle-free replacement. Enjoy peace of mind and shop with confidence knowing that your satisfaction is our top priority!
LIGHTNING FAST SHIPPING
Our dedicated in-house shipping team carefully packs and ships your orders within 4 business days. We often ship even sooner, but during peak launches or especially busy times, we appreciate your patience as we do our best to stay within this timeframe. Every order is handled with care from start to finish, so you can shop confidently knowing your pieces will reach you safely.
SINGLE
PAIR
Free Shipping Over $75
365-Day Guarantee
4.6 Star Reviews
Sleep-Friendly
Hypoallergenic
Waterproof
DESCRIPTION
She's cute, she's versatile, she's out of the world! Similar to our original Lunar Phase Flat Back Stud, this version is quite a bit smaller and it features an opal, rather than a clear zirconia.
This listing is for a single ASTM F136 implant grade titanium push-pin flat back stud.
Sold individually.
Measurements: Post measures at 1/4 inch (6mm) length, with a 4mm disc on back. 18 GA (1mm). Flower is approx. 6mm in diameter. Refer to listing images to get an idea of the size of the stud on-ear. Check your own ear measurement before ordering.
Colors available: 18K PVD Gold Plated Titanium, Titanium, Synthetic Opal
Care: These are tarnish-proof and waterproof. With all items of this material, if you come into contact with chlorine or salt water, cream, lotion, perfumes, etc. Rinse in water and dry if this does happen. When not wearing, store in a dry, cool place.
CARE
Soak your studs in a bowl filled with warm water and a few drops of dish soap for about 15 minutes.
Gently scrub your jewelry with a q tip or soft cloth to remove any buildup or debris.
Store in a safe place when not in use.
Handle with care.
365-DAY GUARANTEE
At Cords Club, we are committed to providing durable and high-quality products. That's why we offer a 365 Day Guarantee on all our items. If you experience any defects or issues within the first year, simply contact us for a hassle-free replacement. Enjoy peace of mind and shop with confidence knowing that your satisfaction is our top priority!
LIGHTNING-FAST SHIPPING
Our dedicated in-house shipping team carefully packs and ships your orders within 4 business days. We often ship even sooner, but during peak launches or especially busy times, we appreciate your patience as we do our best to stay within this timeframe. Every order is handled with care from start to finish, so you can shop confidently knowing your pieces will reach you safely.
Trusted by over 250,000 happy customers.
SINGLE
PAIR
Sleep-Friendly
Hypoallergenic
Waterproof
DESCRIPTION
She's cute, she's versatile, she's out of the world! Similar to our original Lunar Phase Flat Back Stud, this version is quite a bit smaller and it features an opal, rather than a clear zirconia.
This listing is for a single ASTM F136 implant grade titanium push-pin flat back stud.
Sold individually.
Measurements: Post measures at 1/4 inch (6mm) length, with a 4mm disc on back. 18 GA (1mm). Flower is approx. 6mm in diameter. Refer to listing images to get an idea of the size of the stud on-ear. Check your own ear measurement before ordering.
Colors available: 18K PVD Gold Plated Titanium, Titanium, Synthetic Opal
Care: These are tarnish-proof and waterproof. With all items of this material, if you come into contact with chlorine or salt water, cream, lotion, perfumes, etc. Rinse in water and dry if this does happen. When not wearing, store in a dry, cool place.
CARE
Soak your studs in a bowl filled with warm water and a few drops of dish soap for about 15 minutes.
Gently scrub your jewelry with a q tip or soft cloth to remove any buildup or debris.
Store in a safe place when not in use.
Handle with care.
365-DAY GUARANTEE
At Cords Club, we are committed to providing durable and high-quality products. That's why we offer a 365 Day Guarantee on all our items. If you experience any defects or issues within the first year, simply contact us for a hassle-free replacement. Enjoy peace of mind and shop with confidence knowing that your satisfaction is our top priority. Try CordsClub risk-free today!
LIGHTNING-FAST SHIPPING
Our dedicated in-house shipping team carefully packs and ships your orders within 4 business days. We often ship even sooner, but during peak launches or especially busy times, we appreaciate your patience as we do our best to stay within this timeframe. Every order is handled with care from start to finish, so you can shop confidently knowing your pieces will reach you safely.
Free Shipping
Over $75
365-Day
Guarantee
Highly
Reviewed
Trusted by Over a Quarter Million Happy Ears
Tia C.
Verified Customer
Perfect for almost any piercing! I’ll use it elsewhere once I add more piercings to my ears! Love!!
Amanda H.
Verified Customer
Everyone needs this one!!!
This tiny bow is so dainty and cute! Perfect size for my stacked lobe
Alison B.
Verified Customer
Looks so cute in my forward helix! Will likely get another one for my newest forward helix, I love her!
Andrea S.
Verified Customer
I wear these almost everyday. They're cute but also lightweight so I don't feel like they're stretching my ears at all
Briana C.
Verified Customer
Sparkly!! Gorgeous little hoops!
They shine super bright, and are
super comfortable!
4 Reasons Why
You Need Cords Club Flat Backs
in your life
Reason #1:
Comfort
Sleep-proof, won’t poke you, and can be worn all day and night
Reason #2:
Happy Piercings
Made from implant-grade materials that are perfect for sensitive ears
Reason #3:
No Green Skin
Waterproof, tarnish-proof jewelry that’s been tested and designed to last
Reason #4:
You + Cords Club
Join a collaborative, stylish club and share your jewelry ideas with us!
Reason #1:
Comfort
Sleep-proof, won’t poke you, and can be worn all day and night
Reason #2:
Happy Piercings
Made from implant-grade materials that are perfect for sensitive ears
Reason #3:
No Green Skin
Waterproof, tarnish-proof jewelry that’s been tested and designed to last
Reason #4:
You + Cords Club
Join a collaborative, stylish club and share your jewelry ideas with us!
Frequently Asked Question
We’ve got answers to all your Cords Club questions, from shipping to stacking.
I'm new to flat backs. What is the most important thing for me to know?
The first thing you'll want to learn is how to keep your Flat Backs nice and secure. Just like you'd tie your running shoes to make sure they stay on your feet for a run, you'll need to adjust your Flat Backs to keep them in place, too!
But don't worry! It's an easy peasy process, and we'll help you through the learning curve. <3
Here are a few resources to get you started:
* Review the Flat Back tips and tricks info guide included with your order
* Check out this helpful playlist of how-to videos
* Connect with our customer service team for personalized help
What size are the flat back earrings?
Cords Club's Flat Backs are 18 gauge and come with a 6mm long Flat Back post.
A 6mm post is a great length for most people, so we d recommend starting there!
We do also have a range of other sizes available and sold separately. If you have questions about sizing, we'd love to help!
Are your flat backs sold individually? Or in pairs?
Our Flat Backs are sold individually, so make sure to add 2 to your cart if you'd like a pair!
Do I need to buy the flat back applicator, too?
Our Flat Back Applicator is a great tool but it's not necessary! The Flat Back Applicator is designed to help make the process of changing your flat backs faster and easier, but you can definitely change your earrings without one. The choice is totally up to you!
Our Everyday Prices
are their Black Friday Prices
Moon Flat Back Stud - Compared Across 4 Brands
CORDS CLUB
$15
Moon Flat Back - Single
COMPETITOR AVG.
$36
Moon Flat Back - Single
Single Stud
Pair of Studs
Material
Hypoallergenic
Nickel-Free
Warranty
CORDS CLUB
$15
our price
$30
$27
$30
our price
ASTM F136 Titanium
ASTM F136
Titanium
365-day
BRAND A
$30
2.0x more
$60
2.0x more
ASTM F136 Titanium
ASTM F136
Titanium
none
Final Sale - no recourse
BRAND B
$38
2.5x more
$76
2.5x more
ASTM F136 Titanium
ASTM F136
Titanium
30-day
$10 fee
BRAND C
$40
2.7x more
$80
2.7x more
ASTM F136 Titanium
ASTM F136
Titanium
365-day
Comfortable For 24/7 Wear
Sleep, Shower, And Workout Friendly
Hypoallergenic And Nickel Free
Lightweight And Secure
Comfortable For 24/7 Wear
Sleep, Shower, And Workout Friendly
Hypoallergenic And Nickel Free
Lightweight And Secure
Comfortable For 24/7 Wear
Sleep, Shower, And Workout Friendly
Hypoallergenic And Nickel Free
Lightweight And Secure
Apply Your Flat Back Studs In Seconds
New to flat backs? Watch our videos to see how simple they are to apply.
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SHOP BEST SELLERS
Highly Recommended for Sensitive Ears
- Amaya K.Verified Buyer1 hour agoRated 5 out of 5 starsAmazing gift
I got these for my mother and she loves them, super comfy and cute!
CCCords Club21 seconds agoHi Amaya 🌸
We're absolutely delighted that the Mini Opal Lunar Phase Flat Back Studs made such a perfect gift for your mother 💖! It warms our hearts knowing she loves them and finds them both super comfy and cute — that's exactly what we hope for with every piece. There's something so special about gifting jewelry that brings joy and comfort, and we're honored to be part of that sweet moment between you two 🌿.
😘~ Elvie with Cords Club
- Victoria S.Verified Buyer4 weeks agoRated 5 out of 5 starsCelestial Vibes for Days
I bought these cuties in gold to wear with the opal micro studs. I love a good celestial vibe and opal with gold is an absolute dream. These studs are small, but legible from a distance what they are. The op catches the light in a stunning way. And the celestial vibes?!? On point. One of my stack pairing im most proud of and definitely my favorite gold set I’ve gotten.
CCCords Club3 weeks agoHi Victoria!
I'm absolutely thrilled to hear you're loving your Mini Opal Lunar Phase Flat Back Studs and that celestial vibe they're giving you! 💫 The combination of gold with opal is truly magical — there's something so dreamy about how those opals catch and reflect the light, especially when paired with that warm gold tone! It sounds like you've put together such a stunning stack pairing, and I'm so excited that this has become your favorite gold set! The fact that they're small but still so recognizable and eye-catching from a distance just shows how beautifully designed these lunar phase pieces are! 🌙
😘~ Elvie with Cords Club
- Lisa K.Verified Buyer1 month agoRated 5 out of 5 starsSo small but is never missed
I have a lot of piercings and this I wanted to add this one with the rest of the opals I have and it’s subtle but cute! So many compliments and adds to my personality
CCCords Club1 month agohi Lisa!
Yay! 😊 I'm so happy to hear it's the perfect subtle addition to your opal collection — and that you're getting so many compliments! It sounds like it really adds that special touch to your personality. ✨
🌙 Jace with Cords Club - Kristen G.Verified Buyer3 months agoRated 5 out of 5 starsSo quick and easy!
I love that I can put my earrings in at night and sleep in them so that I save some time before work! These earrings match everything and are so comfortable.
CCCords Club2 months agoHi Kristen!
We're so happy to hear how convenient and comfortable the Mini Opal Lunar Phase Flat Backs are for you 💫! Being able to sleep in them and save time in your morning routine is exactly what we love about flat backs—and knowing they match everything makes them even better.
✨ Jace with Cords Club - Marissa W.Verified Buyer3 months agoRated 5 out of 5 starsVery Pretty
I got this to match the alien. This is very pretty and different. Pricey for what it is, but with the stone I understand.
CCCords Club2 months agoHi Marissa!
We're so excited to hear you love how pretty and unique it is 💫! It sounds like it pairs beautifully with your alien piece—what a perfect combination ✨. We totally understand the investment, and we're so glad you appreciate the quality that comes with the opal stone. Thank you for sharing your thoughts!
✨ Jace with Cords Club
Top-Tier Customer Service
Have questions? Our amazing in-house customer service team is ready to answer them!
10,000+ Verified 5-Star Reviews
Loved by thousands of happy ears (and counting).
Fast & Secure Shipping
Get your orders ASAP. Our in-house shipping team packs all orders within 1-2 business days!
365-Day Warranty
We stand by every Cords Club product’s durability & quality. Try risk free, today!
Love Flat Backs?
Two Studs for the Price of One. Every Month.
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have a question?
Check out our FAQ page for answers to our most frequently asked questions and to contact us!