This low-profile, very rugged creeper is constructed of heavy duty 1" steel square tubing for durable use. Features oil resistant vinyl covered padded seat with powder coat finish. Six 2-1/2" swivel casters makes it very maneuverable and able to roll smoothly over rough terrain. What some of our customers say about this product - "This creeper is the best I've used in 30-years working under cars. It's low to the ground and very rigid. The ball bearing wheels make it easy to maneuver. The quality rivals that of more expensive brands. I've already used it over and over, in rough terrain, in gravel and it maneuvers with ease. I would recommend this to anyone who works on cars or any type of machinery."