【Compatibility】Upgraded silicone cover ensures precise sensor alignment, compatible with Ultrahuman Ring Air, fits 8mm smart ring. It is available in a variety of sizes. Please choose S for size 5/6/7/8/9/10, M for size 11/12/13/14. (Note: Ring is NOT included) 【Upgraded Anti-Slip Texture】Upgraded diamond-pattern inner lining securely holds your ultrahuman ring air in place during workouts. Our silicone ultrahuman ring cover integrates a reinforced mesh-structured inner wall that strengthens overall durability while resisting impacts. This streamlined design provides reliable protection against daily wear and accidental shocks without compromising flexibility. 【Anti-scratch & Easy to Clean】Crafted with premium soft silicone, ultrahuman ring cover fully encases the ultrahuman ring air for optimal protection. The anti-scratch material shields your ultrahuman ring air from daily wear and tear, ensures your ultra human ring maintains its sleek appearance, even with constant use. Simply rinse with water or wipe clean for a fresh look. Perfect for working out or outdoor adventures like yoga, gardening, fitness, swimming and rock climbing. 【Skin-Friendly & Easy to Install】Experience all-day comfort with our soft, skin-friendly silicone. Ultra human ring cover is comfortable & skin-friendly, breathable & washable, durable & elastic. The smooth, flexible texture adapts to your finger’s shape without irritation, ideal for sensitive skin. Engineered with precision, the cover hugs your Ultrahuman Ring securely without bulk. Its stretchable design allows quick installation and removal, ensuring seamless access to sensors and buttons. 【Multi Color Choice】Choose from multi-colors for ultrahuman ring protector to match your personality or outfit. From minimalist neutrals to eye-catching hues, mix and multiple covers to express your unique style. A fashion-forward accessory that complements both casual and formal looks. Polyjoy 6 Pack Ring Cover Compatible with Ultrahuman Ring Air/Oura Ring Gen 4/Gen 3, Upgraded Anti-Slip Texture, Anti-Scratch Elastic Silicone Protector Case Accessories for Men Women Working Out Gym