Protector Compatible for Oura Ring 4/Gen4 Ceramic/Gen3 Cover,Scratch-proof | Silicone Durable Snug Anti-Scratch Elastic Ring Sleeve Case Woking Out Gym Sleep for Women Men-Pink+Violet-S for 4/5/6/7

Compatiblity: This Ring Protector is compatible for Oura Ring 4/Ring 4 Ceramic/ Ring Gen3 / ULTRAHUMAN Ring AIR,elastic material made to fit all ring size.(Note: NOT include the Smart Ring and the Charger)