BESTEEL Upgraded Gym Silent Pulley - 360 Degree RotatableThe fitness traction pulley with ergonomic design, it equipped with a rotatable top ring, which is connected with the sheet metal hole through a self-locking nut, which can rotate freely in 360 degrees, safe and solid, and can prevent the wire rope/cable/rope from knotting to ensure safety. The smooth roller makes the rope movement more smoothly, provides great rope traverse that you can save effort can change direction, easy to use. Premium Material - Super Mute SystemThe gym silent pulley is made of high-quality nylon material and the thickened steel plate outer bracket is made of carbon steel. With smooth, durable, wear resistance, corrosion-resistant, strong structure, strong load bearing, anti-rust and hard to deform features. Built in carbon steel ball bearings inside to reduce friction, which can reduce wheel friction to keep smooth and quiet. It can be used indoors or outdoors for a long time.