Flat-back earrings replace the traditional butterfly clutch with a small, smooth disc that sits flush against the back of your earlobe. The decorative front connects through a hollow post — depending on the design, the front either screws on, pops on, or threadlessly clicks into place via friction. The result is a low-profile, comfortable design with no clasp pressing into your skin.

Yes — especially when made with implant-grade titanium. TISTELLA flat-back earrings use ASTM F136 titanium, the same medical-grade, biocompatible material used in surgical implants. It's nickel-free, corrosion-resistant, and won't cause the irritation, redness, or itching that lower-quality alloys often trigger. For anyone with a history of metal allergies, implant-grade titanium is widely considered the safest material available.

Hold the flat-back post behind your ear and slide it through your piercing from behind. The disc should sit flush against the back of your earlobe. Then take the decorative front and press its thin pin into the hollow post from the front of your ear until you feel a firm, snug click. To remove, gently pull the front straight off — the post stays in place. The included insertion tool helps you find your piercing channel from behind for an easier first try.

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Yes — that's exactly what they're designed for. Because the back is flat instead of raised, there's no clasp digging into your skin while sleeping. Implant-grade titanium is fully waterproof and won't react with water, soap, sweat, or skincare. You can sleep, shower, work out, and live your full day without removing them.

No — the threadless push-pin system uses precision friction to lock the front into the post. Once you feel the click, it's secure. Unlike butterfly backs that can loosen and slip off, the push-pin holds firmly through sleep, showering, and daily activity. For an even tighter hold, you can gently bend the pin near the tip before insertion.

Threadless flat-back earrings (like TISTELLA's) use a thin pin that slides into a hollow post and locks via friction — fast on, fast off, no tools required. Screw-back flat-back earrings have threads on the post and a screw-on front, which is more secure but takes longer to change. Both are valid systems; threadless is generally preferred for daily wear, multiple piercings, and frequent style changes.

ASTM F136 is an international medical standard for titanium alloys used inside the human body — bone screws, joint replacements, surgical implants. Unlike "surgical steel," which can contain trace nickel, ASTM F136 titanium is nickel-free and fully biocompatible. It's the gold standard for jewelry that touches healed or healing skin, which is why professional piercers recommend it for both new and long-term piercings.

TISTELLA earrings use a 20G (0.8mm) post — thinner than the 18G or 16G posts found in most standard earrings. The thinner post means less metal in your piercing channel and less pressure overall, which translates to a more comfortable wear. 20G is the most common gauge for healed lobe piercings and most cartilage piercings.

The post is the part of the earring that goes through your piercing. The industry standard is 6mm. We custom-made a 5mm option for our Air⁵ series after noticing real customer feedback about 6mm posts protruding too far behind the earlobe. 5mm sits closer for a barely-there feel; 6mm offers more security and works better for thicker earlobes. Both use the same 3mm flat-back disc and the same implant-grade titanium.

For a fully healed lobe piercing, you can switch to flat-back jewelry anytime. For new piercings, healing typically takes 6-8 weeks for lobes and 3-12 months for cartilage. Always consult your piercer before changing jewelry on a fresh piercing — flat-back implant-grade titanium is what most professionals already recommend for initial piercings, but timing matters.