Alltrade 640981, 3 in 1 40" 3 in 1 Pb Creeper Sea Attached tool tray keeps everything close Heavy duty tubular steel frame 2 inch swivel casters for easy maneuvering Easily converts from a traditional lay down creeper to a creeper with full back support Highly durable Attached tool tray keeps everything close Heavy duty tubular steel frame Long lasting padded vinyl cushion 2 inch swivel casters for easy maneuvering 40 inches in length