HAHIYO 23mm Diameter Double Shower Door Runners Smooth Rolling Easy Install Tight Fit Nylon Rollers Wheels Alloy Pulleys Guides Replacement Parts 4 Pcs for Bathroom Kitchen Drawers Track System

Material:High quality nylon with brass inner and stainless steel screws Size:23mm diameter Package Include:4 Pcs double shower door runner The runners will make your old shower doors roll so much like when you first installed them.Quality nylon wheels with hubs are made of solid brass and hardware is stainless steel.