Steck 20350 PRO STEP Heavy Duty (1,000 lb. cap.) Platform (32" x 16") Foam Bumpers Protect Vehicle Finish Spring Loaded Retractable Wheels, You Can Push It With Your Foot Extra-Wide (23") Base Rails for Stability Height Adjustable from 6-1/2" to 22-1/2" Heavy Duty (Weight - 45 lbs.) Construction