Sea to Summit–accessory straps w hook 20mm-845

 The Accessory Straps with Hook Release are, as the name suggests, a  versatile accessory strap with a quick release lightweight anodized  aluminum alloy hook buckle. A few handy uses include strapping gear to roof racks, lashing dry bags together and attaching gear to your backpack. Available in two widths (10mm and 20mm) and three lengths (1 m / 40 in, 1.5 m / 60 in, and 2 m / 80 in).