Nyx Flat Back Stud

Q: 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!

Q: 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%

Q: 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!

Sleep-Friendly

Hypoallergenic

Waterproof

DESCRIPTION

Named for the night, the Nyx Flat Back Stud pairs a faceted black baguette with a dangling garnet teardrop for a sleek mix of contrast, color, and movement.

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 4.5 x 9.7 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

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

A close-up of an ear with multiple silver piercings, including heart, bow, and gem-shaped earrings.

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!

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

~~$30~~$27 our 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

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

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Highly Recommended for Sensitive Ears

4.8

Rated 4.8 out of 5 stars

Based on 6 reviews

Total 5 star reviews: 5 Total 4 star reviews: 1 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0

100%would recommend this product

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6 reviews

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Katelyn C.
Verified Buyer
2 days ago
Rated 5 out of 5 stars
Dainty and simple
These cute studs are so pretty and add a cute pop of color!
Was this helpful?
CC
Cords Club
23 seconds ago
Hi Katelyn!

I'm so happy to hear you're loving your Nyx Flat Back Stud! 💕 I love how these little beauties can be so understated yet still bring that perfect touch of charm and personality to your look! It sounds like this Nyx stud is giving you exactly what you were looking for — that sweet balance of elegance and fun color that just makes your whole ear setup feel complete! There's something so wonderful about those pieces that are simple but still make such a beautiful statement! ✨

😘~ Elvie with Cords Club
Meg C.
Verified Buyer
3 months ago
Rated 5 out of 5 stars
Nyx flat back
such a cute design!
Was this helpful?
CC
Cords Club
3 months ago
Hi Meg ✨

Thank you so much for your wonderful review! We're so glad you're loving the cute design of the Nyx Flat Back Studs 🌟! They really are such a sweet addition to any ear stack. We appreciate you taking the time to share your thoughts with us!

😘~ Elvie with Cords Club
Teagan E.
Verified Buyer
3 months ago
Rated 4 out of 5 stars
Pretty, need to sit the correct way
These are gorgeous and dainty. They’re not super versatile and need to sit in a place where they can dangle. They also only look good oriented one way, so they’re not great for every day when they may get rotated and hang funky. They’re really pretty though!
Was this helpful?
CC
Cords Club
3 months ago
Here’s a warm, appreciative reply you can send back:

Hi there ✨
We’re so glad you find these gorgeous and dainty 💛. Thank you for sharing your thoughtful feedback about how they sit and shine best when oriented the right way—it’s helpful for us and for others considering them. We love knowing they bring that extra touch of prettiness when worn just right!
🌻 Jace with Cords Club
Keisha C.
Verified Buyer
3 months ago
Rated 5 out of 5 stars
Stunning!
Obsessed with these studs. So cute and delicate with a pop of color that looks like a drop of blood.
Was this helpful?
CC
Cords Club
3 months ago
Hi Keisha!

We're absolutely obsessed that you're obsessed with the Nyx Flat Back Studs! 🖤 You captured their vibe perfectly — that delicate pop of color with such a striking, dramatic look is exactly what makes these studs so special. There's something so captivating about that deep red that adds just the right edge to any piercing setup. Thanks for this stunning review! 🤩🤩

✨~ Elvie with Cords Club
Rae W.
Verified Buyer
4 months ago
Rated 5 out of 5 stars
Mystery Flat Back Stud 1
These studs are so pretty and different than and I have. I love them.
Was this helpful?
CC
Cords Club
4 months ago
Hi Rae!

Yay, so happy the Mystery Flat Back Stud 1 surprised you with something totally unique! 🖤✨ There's nothing better than finding those special pieces that are completely different from everything else in your collection — it's like discovering a little treasure! We're absolutely thrilled you're loving how pretty they turned out and that they're adding something fresh to your jewelry box! 🥹 Thanks for being such an amazing repeat customer and for the sweetest review!

😘~ Elvie with Cords Club 🖤🎃