Make sure this fitsby entering your model number. Elevated base designed to prevent bending and stooping Patented 5″ Clean Wheel System casters designed to prevent wheels from picking up hair, lint and debris Fully sewn with 18 oz commerial grade flame retardant (NFPA-701) vinyl with mold, mildew UV and tear reistant properties Base is made from heavy duty 7/8″ steel tubing Ships knocked-down for freight savings