Material: The shell is made of polypropylene, a neatly braided nylon rope with a sturdy zinc alloy cogwheel that can be flexibly adjusted and an aluminum buckle to be fully locked and can safely support up to 68 kg. .Easy to use: 1. Fix the hook in a fixed place with a pulley. 2. Use another hook at the other end of the rope to hang your product. Pull the rope without a hook to adjust the product upwards. If you need to adjust the product downward, you need to push the position lever built into the pulley, then pull the rope with the hook. .Adjustable: Fully adjustable and locked, extremely high tear and rust resistance, can be used for a long time. The carabiner buckle is convenient design, quick, self-locking and anti-loosening to ensure safety. .Compatible: It is compatible with reliable support and correct clearances of the clamping system and mechanisms, provided that the hooks and bolts fit it. With a metal clasp to attach the rope to one end, these new hangers make lifting and lowering lights and other things easy and smooth. Discover your hanging tent, your fan and more. .Wide range of applications: for hanging LED grow lights, aquarium lights, fans, ventilation systems, filters, reflectors, flower pots, garden lights. minor, etc. .