This is the Dive Rite Cam Strap with Roller Buckles Marine Grade Stainless Steel Buckle Features: Lightweight, marine grade stainless steel buckle 36" (91.4cm) length of 2" webbing with 7,000 lb tensile strength Weight: 11oz (311g) Model #: BC2035 Made in USA The stainless steel cam strap with roller buckle uses a 2-inch wide nylon webbing with marine grade stainless steel buckle. The 36-inch webbing length is suitable for cylinders from 6.9 inches (17.5cm) to 8 inches (20.3cm) in diameter, which includes them most popular sizes of cylinders. Nylon rollers on the cam strap protect the cylinder from being scratched by the buckle, while a rubber non-slip pad prevents the cylinder from shifting once the cam buckle has been secured. Excess webbing is secured using Velcro, which will also prevent the buckle from accidentally coming open.