About this product: 【ADJUSTABLE】: Fully adjustable and lockable, extremely corrosion and tear resistant for long-lasting durability. 【EASY TO USE】: These metal hooks secure one end of the rope with a metal clasp, making it quick and easy to lift lamps and other objects. Ideal for hanging tents, awnings, and more. 【DURABLE AND STURDY】: Made of high-quality metal and carefully assembled nylon, it supports up to 68 kg (150 lb). Very safe and durable. 【Only two steps】: 1. Use the pulley to secure the hook in a safe position. 2. Use the other hook on the other end of the rope to hang the object. Pull the rope without the hook to raise the object. To lower it, push the positioning bar integrated into the pulley and then pull the rope with the hook. 【WIDE APPLICATION】: The climbing buckle locks easily, quickly, and automatically thanks to an anti-unlatching system that ensures safety. Ideal for indoor grow racks, carbon filters, LED grow lights, etc. Color: 1 pair. Features: This rope tensioner tightens the rope and locks it in place. For all your mounting needs, our steel rope hangers will provide maximum strength for the most delicate parts of your grow equipment, so you don't have to worry about falls, slippage, or detachment. Perfect for hanging lamps, reflectors, carbon filters, fans, pots, and much more. Specifications: - Color: Black - Material: Nylon, zinc alloy, and stainless steel. - Size: Approx. 15 x 15 x 4 cm. Instructions: 1. Ensure the pulley hook is securely attached. 2. Use the hook at the other end and the rope to hang the item. 3. To hang the item at a greater height, pull the rope without the hook. 4. To adjust the height of the hanging objects, lift the stop control lever on the suspension pulley and pull the rope with the hook down to the desired height. The package includes 1 pair of nylon rope ratchets.