YAJU Multi-Functions:The knot-free hook combines the functions oftighten, tension, hang, connect, wrap and secure light loads.Help to lock the cord and prevent it skids away effectively, adjust the rope length easily. Help to protect your tent securely from strong wind and rainstorm.Self-locking Structure:Rope pulley system,a very strong self-locking structure. Loop the rope through the hook, and pull it tight, it willlock automatically.Free from knots Easy to tighten ropes Fits Various Rope Sizes: The rope tightenerfits rope sizes from 2mm to 4mm, a perfect tent wind stopper.Strong load bearing.Small and Portable:Made of quality Metal material, anti-corrosion, strong and durable.easy to put in your pocket or backpack, portable to carry.Widely Used: Easy to bind objects properly at outdoors or indoors,it is an outdoor and daily binding assistant. Make everything faster and easier. Colour:silver+green Material:Metal Product specification: 5m Package Contents:4 * Automatic Lock Hook1 * 5m Rope Only the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.