For quick, secure tie-downs that hold tension as long as you need it, then release easily, you can't beat Supply Rubber Straps with Crimped Hooks. Sometimes called kangaroo straps, octopus or "occy" straps, and also frequently referred to as bungee cord, stretch cord, shock cord, or shock rope, these heavy-duty rubber straps with crimped metal hooks are perfect for securing boat covers, truck tarps, tent covers and other camping uses, keeping canopies taut and cargo in place, and a whole lot more.