ITEM NAME:bearing pulley 90mm wearproof wheel cable gym universal fitness equipment parM& Description: Brand new and high quality Features: Material: Nylon Color: Black Size:Approx.90mm/3.5" Use Range: Fitness Equipment Parts Nylon pulley is light weight, easy to install at high altitude. Nylon pulley as a tower crane accessories have been widely used in the lifting equipment, with its unique advantages gradually replace the old metal pulley. Good wear resistance, long service life. Does not produce friction spark, safety performance Package includes: 1x pulley wheel.Nylon pulley is light weight, easy to install at high altitude. 1x pulley wheel. Material: Nylon. Does not produce friction spark, safety performance. Good wear resistance, long service life.