Ro+Ten Immok Rigid Knee Brace - Immobilizer 0° Universal Size Double-lined soft foam rubber structure with sponge lining for comfort and protection. Rigid, moldable light alloy rods for joint stability comparable to a cast. Closing system with Velcro® straps to prevent migration and rotation of the brace. Patella opening and removable pad at popliteal level for maximum comfort. Easy removal and washable for convenient personal hygiene during recovery.