Feature:1. STAINLESS STEEL MATERIAL: The pulley block is made of 304 stainless steel, with a solid structure, rust prevention, wear resistance, and high temperature resistance. Can be used continuously without fear of damage.2. EASY TO USE: The rotating cylinder head is sturdy, rotates 360 degrees to prevent rope knots, and rotates the wheels smoothly. You can quickly combine individual pulley blocks and spring hooks.3. WIDE APPLICATION: Ideal as a lifting pulley, traction pulley, cross pulley, and suitable for backpacks, keyrings, chains, ropes, camping, hiking, fishing, pets, indoor and outdoor equipment gears, DIY accessories, fitness, hanging wheels, mountaineering, and indoor and outdoor fitness.4. FINE WORKMANSHIP: The pulley block and spring snap hook is well made with smoothly and delicate appearance, well not scratch ropes, or other equipments, choose with confidence!5. IDEAL REPLACEMENT: This pulley block and spring snap hook is an ideal replacement set for the old and damaged parts for safer and more reliable use.Specification:Item Type: Single Pulley Block Spring Hook Set Material: Stainless SteelBearing Capacity: Approx. 400kg / 881.8 lb.Package List:1 x Single Pulley Block 1 x Spring Snap Hook Note:Please allow 1 to 2in error due to manual measurement. Thanks for your understanding.