An assortment of replacement rollers for sliding doors from Hillman. Hillman nylon rollers use ball bearings for smoother ease-of-use and extended operating life. The rollers in this assortment are made from nylon and steel and range in diameter from 1" to 1-1/2". Full assortments of #54075 feature Hillman item numbers #54076 - #54081 comprising 40 refillable pieces.