Product Information Description Measuring Guide Other Details Fixed caster Finish: Outer wheel: gray, TPR (thermo plastic rubber) Inner wheel: light gray, nylon Support/plate: zinc-plated, steel Price per caster Casters & Wheels - How To What Height Options Are Available? Whats The Best Table Leg Or Base Style? A Back Saver, Rolling Table Legs Need It Fast? We Can Help! See Our International Shipping Options Request A Quote Today Fixed Caster from Hafele available in 4" and 5" sizes. Mounting plate measures 99mm by 80mm.