Tia C.
Verified Customer
Perfect for almost any piercing! I’ll use it elsewhere once I add more piercings to my ears! Love!!
Dark Matter Flat Back Stud
Sleep-Friendly
Hypoallergenic
Waterproof
DESCRIPTION
This listing is for an ASTM-F136 implant grade titanium push-pin flat back stud. Note that the nature of prong settings can make them catch on hair or fibers
Measurements:
- 18 GA (1mm), though compatible with our 16 and 20 gauge threadless labret posts
- Post is 1/4 inch (6mm) in length, with a 4mm disc on back.
- Approx. size of design is 9.9 x 9.9 mm.
- Check your own ear measurement before ordering
Materials: ASTM-F136 Titanium, gold is 18K PVD plated, prong-set cubic zirconia
A Cords Club exclusive, we designed this flat back stud ourselves. We spent months perfecting this gorgeous stud! Note that this was part of our 2025 Spooky Advent Calendar.
Care: Water and tarnish proof with proper care. If exposed to salt water, chlorine, or lotions/perfumes, rinse off with cool-warm water and gently dry. When not wearing, store in a dry, cool place. Do not pull, twist, or tug on your jewelry.
CARE
Soak your studs in warm water with a few drops of dish soap for about 15 minutes. Gently clean with a soft cloth and store safely.
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 in-house shipping team carefully packs and ships orders within 4 business days. During peak launches, please allow extra time.
Free Shipping Over $75
Free Shipping
Over $75
365-Day Guarantee
365-Day
Guarantee
Highly Reviewed
Highly
Reviewed
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?
Both! Grab a single if you’re mixing and matching, or a pair to save 10%
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!
Trusted by Over a Quarter Million Happy Ears
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:ComfortSleep-proof, won’t poke you, and can be worn all day and night
Reason #2:Happy PiercingsMade from implant-grade materials that are perfect for sensitive ears
Reason #3:No Green SkinWaterproof, tarnish-proof jewelry that’s been tested and designed to last
Reason #4:You + Cords ClubJoin a collaborative, stylish club and share your jewelry ideas with us!
CORDS CLUB
$15
Moon Flat Back - Single
COMPETITOR AVG.
$36
Moon Flat Back - Single
Feature
Single Stud
Pair of Studs
Material
HypoallergenicNickel-Free
Warranty
CORDS CLUB
$15our price
ASTM F136 Titanium
365-day
BRAND A
$302.0x more
$60
2.0x more
ASTM F136 Titanium
noneFinal Sale - no recourse
BRAND B
$382.5x more
$76
2.5x more
ASTM F136 Titanium
30-day$10 fee
BRAND C
$402.7x more
$80
2.7x more
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.
How To Apply
Flat Back Studs
How To Remove
Flat Back Studs
How To Apply Flat Back Studs With An Applicator
How To Tighten
Your Flat Backs
Highly Recommended for Sensitive Ears
100%would recommend this product
Slide 1 selected
6 reviews
- Jamie4 days agoRated 5 out of 5 stars5 Stars
Love this so much, as always, easy to install and looks gorgeous. A bit of a larger piece than other cords club pieces. Next to it on my lobe is “lump of coal” for reference.
CCCords Club4 minutes agoHi Jamie,
A little bolder in size, yet just as effortless to adore. We’re delighted the Dark Matter Flat Back Stud made such a gorgeous statement beside your Lump of Coal, while keeping that easy Cords Club installation. Thank you for sharing such a thoughtful review. 🖤⭐✨
–Hope with Cords Club
- Meg C.Verified Buyer10 months agoRated 5 out of 5 starsDark Matter Flat Back
wore them on halloween and got a bunch of compliments
CCCords Club10 months agoHi Meg ✨
Thank you so much for your wonderful review! We're thrilled to hear the Dark Matter Flat Back Studs were such a hit on Halloween 🖤! There's nothing better than getting compliments on your jewelry—especially when you're rocking something as sleek and versatile as these beauties. They really do have that perfect edgy vibe that works for spooky season 👻👻⚰️⚰️🕷️ ☠️☠️🦇🦇 and beyond!
😘~ Elvie with Cords Club
- Teagan E.Verified Buyer10 months agoRated 5 out of 5 starsGorgeous
Love that these are a little bigger - they sit well in my second lobe piercing and are good space-fillers if I want a cartilage piercing to look really decked out.
CCCords Club10 months agoHi Teagan✨
We’re so glad you find these gorgeous! The slightly larger size makes them perfect for a second lobe piercing, and we love that they double as space‑fillers to really deck out a cartilage look 💛.
🌻 Jace with Cords Club - Keisha C.Verified Buyer10 months agoRated 5 out of 5 starsLooove!
This went perfect with the rest of the ear rings from the advent calendar!
CCCords Club10 months agoHi Keisha!
We love that the Dark Matter Flat Back Stud was the perfect match for your advent calendar earrings! ✨ There's something so satisfying when a piece just clicks perfectly with the rest of your collection — it sounds like this little beauty completed your set beautifully. Thanks for the amazing review!
🖤~ Elvie with Cords Club
- Rae W.Verified Buyer11 months agoRated 5 out of 5 starsMystery Flat Back Stud 2
I love these hoops they are a great addition to my collection.
CCCords Club11 months agoHi Rae!
Yay, so happy the Mystery Flat Back Stud 2 is such a perfect addition to your collection! 🖤✨ Wait — did you say hoops? That's so funny, but honestly we're just thrilled you're loving whatever mystery surprise you got! 😅 There's something so exciting about mystery pieces that just fit perfectly with everything else you have, you know? We're absolutely obsessed that it's working out so well for you! 🥹 Thanks for being such an amazing repeat customer and for the sweetest review!
😘~ Elvie with Cords Club 🖤🎃
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Loved by thousands of happy ears (and counting).
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