Vktech 10pcs Tube Webbing Hose Clamp Rotatable Holder Molle Camp Backpack Clip (Mud color) Used for Secure your drinking tube to your shoulder straps to keep within close proximity Very practical for hiking, camping, mountaineering It can be used with 20mm and 25mm webbing strap. Octagon mount allows rotate any part to 8 different fixed positions The slotted outside bars allow you to simply add base unit to any position along the shoulder strap