Durable Stainless Steel Material: The pulley is made of high-strength stainless steel, wear-resistant, strong and durable, and can be reused for a long time. High Load Capacity: The stainless steel block pulley is very sturdy and has a load capacity of up to 50 kg. It is not easy to damage and break, suitable for for most purposes, very practical and simple. Strong Water Resistance: These wheels are more resistant to corrosion, water and rust than ordinary stainless steel wheels. They can be used in harsh environments such as seawater and are suitable for outdoor use. Practical Pulley: A simple pulley can be easily used to pull, lift, hang or transport heavy objects with a rope. With fine design and workmanship, the wheel can roll very smoothly, which will make the traction project more efficient. Wide Range of Applications: Can be used with rope or cord inside and outside for flexible sliding roller. Easy installation for large kayaks, canoes, factories, construction, marine, mining, household. Perfect for garage, machine loading, curtain, clothesline, dog pulley, etc.