Features HIGH BEARING CAPACITY: This double pulley block can bear up to 100KG 220LBS load, suitable for multiple applications. ZINC ALLOY MATERIAL: The dual pulley block is made of hard zinc alloy, resistant to rust, abrasion and temperature. EASY TO USE: The fixed top of the pulley roller facilitates rope handling, which is convenient to use and widely used. SMOOTHLY ROLLER: The rollers of the pulley block are smoothly, allowing ropes moving easily and smoothly without stuck. 4 PCS SET: The set contains 4 pcs double pulley blocks, which can be used with rope and cable to lift heavy objects indoors and outdoors. Specification: Item Type: Double Pulley Block Material: Zinc Alloy Single Load Bearing: Approx. 100kg / 220lb Single Size: Approx. 36x22x13.5mm / 1.42x0.87x0.53in Package List: 4 x Double Pulley Block Package List 4 x Double Pulley Block