ShopSol Heavy Duty Automotive Creeper Envelope welded 1" tubular steel frame designed for 500 lbs. "real load" capacity Vinyl upholstered 20" extra wide bed and elevated head rest Optional tool tray (ShopSol #3010008) that attaches to either side of the creeper and Hangar (ShopSol #3010007) to efficiently store the creeper in the workshop. Includes six industrial non marking oil resistant casters for rugged uneven surfaces designed for 1.5" ground clearance. Meets and exceeds BIFMA testing standards