【Compatibility】The silicone ring cover compatible with Oura Ring Gen 4/Oura Ring Gen 4 Ceramic/Oura Ring Gen 3 Horizon/Gen 3 Heritage/Ultrahuman Ring Cover. It is available in a variety of sizes. Please choose S for size 4/5/6/7, M for size 8/9/10/11, L for 12/13/14/15. (Note: Ring is NOT included) 【Charging Hole Design】Specially design for charging without removing the cover. The ring cover is designed with a charging hole for the ring dimple. Align the hole of the ring protector with the ring dimple. You can charge your ring without any hassle of taking ring cover on and off. 【Anti-scratch】The silicone ring protector fully encases the oura ring for optimal protection. It is essential for protecting your Oura Ring from scratches, dents while working out, doing chores, lifting weights, sporting events and daily wear. 【Comfortable & Skin-Friendly】The Oura Ring cover is made from premium soft and odorless high quality silicone. It is comfortable & skin-friendly, breathable & washable, durable & elastic. It won't cause allergies or discomfort to your fingers. 【Multi Color Choice】Package includes many ring protectors in different colors. You can change the ring cover for your oura ring every day according to your mood or outfit. It only takes a few seconds to give your oura ring a new look. 6 Pack Ultra-Thin Cover Compatible with Oura Ring Gen 4/4 Ceramic/Gen 3 Horizon/Heritage/Ultrahuman, Surport Charging with Cover on, Anti-Scratch Elastic Silicone Rings Protector Accessories Men Women