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Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
4.3
Rated 4.3 out of 5 stars
17 Reviews
Solitaire 4mm Flat Back Stud
$28
Gold

SINGLE

PAIR

White box with arrows, on pink circular background.

Free Shipping Over $75

Pink shield with a flower emblem inside on a circular background.

365-Day Guarantee

4.6 Star Reviews

Sleep Friendly

Hypoallergenic

Waterproof

Slide 1 of 1
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
4.3
Rated 4.3 out of 5 stars
17 Reviews
Solitaire 4mm Flat Back Stud
$28
Gold

SINGLE

PAIR

White box with arrows, on pink circular background.

Free Shipping Over $75

Pink shield with a flower emblem inside on a circular background.

365-Day Guarantee

4.6 Star Reviews

Sleep-Friendly

Hypoallergenic

Waterproof

Solitaire 4mm Flat Back Stud
$28
4.3
Rated 4.3 out of 5 stars
17 Reviews
Slide 1 of 1
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
$28
4.3
Rated 4.3 out of 5 stars
17 Reviews

Trusted by over 250,000 happy customers.

SINGLE

PAIR

Gold
Solitaire 4mm Flat Back Stud
Solitaire 4mm Flat Back Stud
A white cloud icon on a circular background with a pink and orange gradient.

Sleep-Friendly

A white six-petaled flower icon on a circular pink and orange gradient background.

Hypoallergenic

Waterproof

White box with arrows, on pink circular background.

Free Shipping

Over $75

Pink shield with a flower emblem inside on a circular background.

365-Day

Guarantee

Highly

Reviewed

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!

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.

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

4.3
Rated 4.3 out of 5 stars
Based on 17 reviews
Total 5 star reviews: 12 Total 4 star reviews: 2 Total 3 star reviews: 1 Total 2 star reviews: 0 Total 1 star reviews: 2
82%would recommend this product
Slide 1 selected
17 reviews
  • Kristin S.
    Verified Buyer
    34 minutes ago
    Rated 5 out of 5 stars
    Perfect!

    I love my flat back studs! I rarely change earrings in my second piercing, so these are perfect and stay in place! No issues washing hair, working out, sleeping; they stay put!!

    CC Profile picture for Cords Club
    Cords Club
    22 seconds ago

    Hi Kristin 🌸
    We’re thrilled to hear how much you’re loving the flat back studs! ✨ It’s wonderful that they’ve become your go‑to for your second piercing — staying secure through hair washing, workouts, and even sleep is exactly the effortless comfort we design them for 💫.
    🧡🌿 Jace with Cords Club

  • Patricia S.
    Verified Buyer
    2 weeks ago
    Rated 4 out of 5 stars
    Pretty but irritated my ears

    Very pretty studs and I love the flat back.

    Unfortunately, these are not universally hypoallergenic, my ears were very irritated after just a few hours of wear.

    CC Profile picture for Cords Club
    Cords Club
    2 weeks ago

    Hi Patricia!

    Thanks so much for the 4-star review of the Solitaire 4mm Flat Back Stud! We're so happy to hear you think they're pretty and that you love the flat back design—it really does make such a difference for comfort! 😊 We're really sorry to hear about the irritation you experienced though. While our titanium pieces work wonderfully for most people with sensitivities, you're absolutely right that no material is truly universal for everyone. Some people can have reactions even to high-grade titanium, and we totally understand how disappointing that must have been, especially when you loved everything else about them!

    We really appreciate you sharing your honest experience—it helps other customers with similar sensitivities know what to expect. If you're still within your 30-day window and want to return them, please don't hesitate to reach out to our team at hello@cordsclub.com. Thanks for taking the time to share your feedback with us!

    😘~ Elvie with Cords Club

  • Danielle
    Verified Buyer
    1 month ago
    Rated 1 out of 5 stars
    Not safe for sensitive ears!

    These are advertised as safe for sensitive ears, but I still had an allergic reaction to them. I have had no issues with my steel based piercing jewelry. I wore these for a few days and my ear lobes are red, inflamed, and started bleeding. Highly disappointing because these weren’t cheap. I don’t recommend if you have sensitive ears!

    CC Profile picture for Cords Club
    Cords Club
    1 month ago

    Hi Danielle,

    We're so sorry to hear about your allergic reaction! That sounds really uncomfortable and painful, and we completely understand how frustrating this must be, especially after investing in a product that was supposed to be safe for sensitive skin.

    While our jewelry is made from implant-grade materials, we know that everyone's skin reacts differently, and unfortunately, even hypoallergenic materials can sometimes cause reactions in certain individuals. We're really sorry that this happened to you, particularly since you've had success with steel-based jewelry in the past.

    Your health and comfort are our top priority, and we definitely don't want you to continue wearing anything that's causing irritation. We really appreciate you taking the time to share this feedback, as it helps other customers with similar sensitivities make informed decisions.

    Please reach out to our support team at hello@cordsclub.com so we can help make this right for you.

    • JM with Cords Club
  • Kimberly F.
    Verified Buyer
    3 months ago
    Rated 5 out of 5 stars
    Favorite every day earring

    I wear these every day, they are so comfortable and always stay in my ear. I will continue to purchase flat back earrings.

    CC Profile picture for Cords Club
    Cords Club
    3 months ago

    Hi Kimberly! We’re so glad these have become your favorite everyday earrings! 💎 Comfortable, secure, and perfect for daily wear—that’s exactly what we love to hear. Thank you for sharing your experience and for choosing flat backs with Cords Club! ✨Jace with Cords Club

  • Danielle W.
    Verified Buyer
    3 months ago
    Rated 5 out of 5 stars
    Worth it!

    I absolutely love these earrings! The check every box. Stylish, comfortable, beautiful and affordable!!!

    CC Profile picture for Cords Club
    Cords Club
    3 months ago

    Hi Danielle, love this! 💖 We’re so glad the earrings check every box for you—stylish, comfy, beautiful, and affordable is the dream combo ✨
    ✨ 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!

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