TPR Ribbed Roller Kits .Non-marking thermal plasticized rubber Fits 3/4" or 1-1/8" shaft. TPR (thermal plasticized rubber) is resilient, non-marking, stronger than black rubber and softer than polyurethane. Rollers fit 1-1/8" shaft. Bushings included to convert to 3/4" shaft. Package includes four 5" x 3" ribbed rollers with polypropylene hub, four Delrin® Bushings, four washers for 1-1/8" shaft, four washers for 3/4" shaft and four retainer rings.Displayed In Compact Blister Package. Sold as each kit