40 in Under Dash Creeper 330 lbs Rolling Garage Creeper Height Adjustable Elevated Mechanic Creeper Adjustable for Various Vehicles Durable Carbon Steel Frame Relieve Back Pressure Foldable Stand Easy Assembly Height Adjustment Levels: 6,Regulating Rod Square Tube Size: 0.79 x 0.79 in / 20 x 20 mm,Adjusting Seat Square Tube Size: 0.98 x 0.98 in / 25 x 25 mm,Length: 40 in / 1016 mm,Item Model Number: XF8163,Max Load Capacity: 330 lbs / 149.7 kg,Seat Cushion Size: 39.0 x 10.4 in / 990 x 265 mm,Base Square Tube Size: 0.98 x 0.98 in / 25 x 25 mm,Product Dimensions: 39.0 x 19.3 x 20.3-27.4 in / 990 x 490 x 515-695 mm,Net Weight: 11.0 lbs / 5 kg ± 3%,Main Material: Q235B Steel,Height Hole Spacing: 1.4 in / 36 mm