Performance Tool, 36", 4 Caster Creeper, 300 LB Weight Capacity, Powder Coated, Heavy Duty, Tubular Steel Frame, Shielded 2-1/2" Swivel Casters Allow For Easy 360 Degree Movement, Fully Padded Deck With Cushion Head Rest, 2-1/2" Replacement Caster Assembly, 36" x 17" x 4" Creeper Size.