Straps down your stored storage boxes such as the Cub Pack - by Front Runner, Wolf Pack - by Front Runner and other hard shell cases. The 40mm/1.6'' wide, steel reinforced polyester strap ensures a sturdy positioning. Features a quick release stainless steel latch with safety catch. Lockable design for peace of mind using a padlock or Rack Accessory Lock / Small - by Front Runner. A minimum box height of 200mm/7.9'' is required. The box's sides and the top require a minimum combined length of 700mm/27.6 or maximum combined length of 1050mm/41.3''. Includes a stainless carabiner, eye nut, custom D-Rings and installation hardware. Use Adjustable Rack Cargo Chocks - by Front Runner for additional sturdiness.