High-quality materials, strong and durable. It is fully adjustable and locked, tear-resistant and rust-resistant, and can be used for many purposes. Made of carefully woven nylon, our pair of adjustable light stands can safely to 150 pounds of weight. It allows you to find the right lamp height, makes watering easier, and even reduces the chance of falling, cracking or damage. how to use: 1. Make sure that the hook with the pulley is fixed in a firm position; 2. Hang objects with a hook at one end and a rope connected to the rope. 3. By raising the height of the suspended matter, of the rope can be pulled without hooks; 4 Lower the height of the suspended matter, and then use the hook to push up the stop rod on the pulley at of the rope. Colour:Black Material:Metal + nylon Size: rope length is about 2m Package Contents: 6* Plant lighting lanyard Only the above package content, other products are not included. Note: Light 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.