[Multi-Functional Self-Locking Hook] The knotless hook combines the functions of clamping, tensioning, hanging, connecting, winding and securing light loads. Helps to effectively lock the rope and prevent it from slipping, easily adjusting the length of the rope. Helps to safely protect your tent against strong winds and heavy rain. [Suitable for various rope sizes] The rope tensioner is suitable for rope sizes from 2mm to 4mm, making it makes a perfect wind shield for your tent. Strong load capacity. [self-locking structure] rope pulley system, very sturdy self-locking structure. Wrap the rope around the hook and pull it tight, it will lock automatically. There is no knot! An easy-to-stretch rope! [Small Portable] The self-locking hook is made of high quality dry material, anti-corrosive, sturdy and durable. Small size 34x13x8mm, easy to put in your pocket or backpack, easy to carry. [Widely Used] The automatic locking hook easily and correctly connects to external or internal objects and is an assistant for external and daily binding. Make everything faster and easier. Size: rope length: about 5M