Reliable Quality: The fitness pulley is made of reliable quality nylon material and brand new bearings. The material is precision machined, sturdy and resistant, which is a great replacement part for worn out pulleys on gym equipment Solid Structure: The pulley is equipped with 6202z metal bearings inside with metal bushings to protect the grease and internal structure from corrosion and rust, the pulley rolls smoothly, the bearings run smoothly and noiselessly. Maximum load 1000 lbs Easy to Install: The bearing pulley as a fitness accessory is lightweight and small in size, it can be easily installed at high altitude, conveniently replacing worn out pulleys on fitness equipment, ensuring the safe operation of the equipment Size: This universal pulley is 90 mm (3.54 inches) in diameter; the center hole is 10 mm (0.39 inches) in diameter; the groove width is 10 mm (0.39 inches) Multiple Uses: The nylon gym pulley with bearing can be used as a replacement accessory for home gym equipment, gym tension ropes, DIY home projects, clotheslines, cable machines, garage door pulley lifting systems and more Anobeyi 90mm/3.5" Fitness Nylon Pulley Wheel, Universal Wear Resistant Bearing Pulley for Replacement Gym Equipment Parts, Cable Machine Accessories, Home Gym Garage Door Pulley System