This gym pulley block is consist of iron component, wear resistant, and not easy to deform These strength training attachments are nice for cable machines, homes workouts, strength training, and other scenarios The square tube hole diameter of this fitness pulley is 26 mm Its compacts structure and light weight save space This fixed pulley wheel is easily installed on the fitness equipment rack It Is and the pulley runs smoothly This rack mounted swivels pulley features a rotatable design that allows you to adjust according to different fitness methods, making it a great accessory for your workout routine