Ribbed Roller Replacement Kit - 4-Pack - BlueReplace your worn ribbed rollers with this ribbed roller kit. The C.E. Smith Ribbed Roller Replacement Kit is designed to provide a smooth and reliable roller system for your boat trailer. It includes four 5" diameter x 3" wide ribbed rollers that are specifically designed to fit a 1-1/8" shaft. The kit also includes four Delrin® bushings that allow the rollers to fit a 3/4" shaft if needed. With polypropylene hubs, these rollers are built to last and withstand the harsh marine environment.Features: Blue TPR material for enhanced durability and resistance to wear Zinc plated washers & clips for corrosion resistance Kit includes: Four 5" diameter x 3" wide ribbed rollers to fit 1-1/8" shaftWith polypropylene hubs Four Delrin® bushings to fit rollers to 3/4" shaft Four 1-1/8" washers Four 3/4" washers Four retainer rings Specifications: Roller Diameter: 5" Roller Width: 3" Shaft Compatibility: 1-1/8" or 3/4" (with included bushings) Material: TPR (Thermoplastic Rubber) with polypropylene hubs Learn MoreFor more information about ribbed rollers, you can visit the Roller Wikipedia page.To learn about TPR material, visit the Thermoplastic Rubber Wikipedia page.