520 30 two-wheel swivel loading pulley

5x Swivel Double Pulley Rigging Lift Rope Hanging Lifting Wheel M20

: Designed for hanging weights in reducing the load Using gravity and skating to lift Swivel pulley cylinder head is solid, durable, can rotate degrees Durable, reliable, waterproof, anti-corrosion, high temperature resistant, corrosion resistant Steady for easy operation , smooth ensures excellent sliding, you can save effort by changing direction

Specification: Material: 304 Stainless Steel: Silver M20: Total Length: . 73mm/2.87 inch

includes: 5 pieces of swivel pulleys