The stainless steel cam strap with roller buckle (BC2035) uses a 2-inch wide nylon webbing with marine grade stainless steel buckle. 36 inch (91.4cm) 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. This cam strap comes standard on all Transpac XT, VoyagerPac, and TravelPac systems.