Dependable, watertight protection for whatever you’re hauling! We have many available options and upgrades, and if you have additional requirements, we can custom manufacture to your exact specifications. (Additional costs may apply.) Galvanized steel end caps are standard, in low-rise or high-rise models. Upgrade to aluminum easy-off caps for easier installation and removal; these anchor with over-center clamps inside the truck box. Our standard stretch cord return guides the roll tube over the end cap, with a protective cover to reduce rope fraying. An upgrade to our patented Shur-Return™ features a heavy-duty steel tension spring and 1/4-inch non-stitch solid braid rope.