The Super Rope Cinch allows you to secure enything without tying knots!!! Simpley loop a 18 to 58 rope around what you need to secure and then through the Super Rope Cinch. Twist clockwise to tighten and you are done! Push button and twist counter clockwise for quick, ease release and adjustments. Thousands of uses from bow and stern lines for canoes and kayaks, bicycles, luggage, lumber and much, much more. Use them for securing boat bumpers, tools, and everything else you fasten with rope. They also work great as guy line adapters for tents. Made of super strong hi density plastic Weight 2.7 oz. size: 2 14 x 2 34. Accomodates rope 18 to 58. simple twist and lock mechanism. Not intended for use in climbing, saftey situations, or any other scenario were humans may be injured. Not to exceed 10% of rope manufacture's Safe Working Load.