1、PERFECT COMPATIBILITY: Silicone smart ring cover is specially designed for smart rings. Compatible with all kinds of smart rings on the market (excluding for Uura rings). 2、PERFECT FIT: The smart ring cover's highly elastic silicone material makes it flexible and fits all sizes. Slides easily over the smart ring, adding minimal thickness to the ring for maximum guard. 3、SCRATCH RESISTANCE: The silicone ring cover avoids scratches that may occur when wearing your smart ring while exercising, doing housework and lifting weights, and guards your ring from looking new all the time. 4、SKIN FRIENDLY: The smart ring cover is made of soft, odorless, premium silicone material, so it won't cause allergies or discomfort to your fingers. The sweatproof material and grip texture keep your ring securely on your finger 5、EASY TO CLEAN: When the smart ring cover gets dusty, you can simply rinse it with water to make it look new and easy to clean. Compact size, light weight, comfortable to wear no burden.