High-quality small lifting pulley: The flat pulley is made of high-quality carbon steel and nickel-plated on the surface. Durable and sturdy, high strength and stability. Pulley block: Iron: Nickel-plated surface. Total pulley height: 34 mm; total pulley width: 61 mm. Sheave diameter: 25 mm; maximum rope diameter: 3 mm-6 mm. (Equipped with screws and expansion tubes.) Duplex bearing design: The silent duplex bearing can significantly reduce the friction of the rope pulley and ensure that the rope pulley runs smoothly and stably. You will hardly hear any noise when it is working. The silent duplex bearing can significantly reduce the noise of the rope pulley and ensure that it runs smoothly and stably. Wide application: Widely used for traction of wire rope or other cable tools; can be installed on walls, floors, ceilings and beams; Designed for use with rope or cord in both indoor and outdoor applications to hang heavy objects or lighten the load. Show more