Universal Size: Protect for Oura Ring Gen 3 with ease using our elastic silicone sleeve; designed to fit all ring sizes and crafted from anti-fall, anti-slip material for ultimate security. Easy Application: Slip on our thin, stretchy sleeve effortlessly over your smart ring; experience minimal thickness addition while maximizing protection during intense physical activities. Enhanced Comfort: Embrace the high-quality elastic silicone construction of our protective cover; enjoy a comfortable, non-bulky fit that maintains the original feel of your ring. Versatile Protection: Protect your smart friend during workouts, sports events, or any vigorous finger movements; ensure durability and longevity with this essential accessory. Size Options: Choose between S for ring sizes 6/7/8/9/10 or M for sizes 11/12/13; tailor-made protection for Oura Ring Gen 3 user. Item Name: Ring Sleeve Material: Silica Gel Type: Smart Ring Cover Processing Technology: Environmentally Friendly Features: Elastic, Anti-Slip, Easy to Use, Universal Size, Protect from Scratches Size Details: Perimeter: 11cm/4.33" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Protective Sleeve