This is the OMS Camband 2-Inch STA w/Buckle & OMS Traction Pad Features: Stainless plastic buckle with nylon webbing Use with 7.25 inch or 8 inch diameter tanks Includes friction pad for secure tank attachment OMS 2-Inch Nylon Cam Band with Plastic Buckle, 36-Inch includes the OMS friction pad to provide a secure grip on your tank and eliminate movement during your dive. A generous length of Velcro allows for a secure closure around the cylinder throughout the dive. The lightweight plastic buckle is the travel standard and ensures a durable product even in harsh salt water environments. Perfect for standard 7.25 inch diameter cylinders and suitable for the larger diameter 8 inch steel tanks as well.