Product information: V-shaped wheel agrave screw in 45 steel with fixed hole, wheel diameter 31 mm, load-bearing 150 kg. Contains two roller bearings carbon steel balls.Product advantages: sturdy and durable, long service life. The structure is compact and the operation is convenient. The surface is hot-dip galvanized. hot to prevent rust. Easy to use. High strength, good stability, low permeability, corrosion resistance abrasion and good stability. chemical. It can reduce vibration and operate smoothly.[Economical Design]: Fixed pulley prevents twisting of the rope. Smooth rollers ensure good rope movement. The upper part is firm and the rope is easy to pull off. handle.Tips for use: Rotating pulleys can be used with ropes or ropes inside and outside for flexible sliding.[Scene of use ] Widely used in automated production lines such as automobiles and various general machinery and equipment. Can be used as fitness equipment to home, fitness equipment, pull-up bar. Or pulleys for indoor and outdoor ropes, garages, ropes. linen, pulley systems, etc.