Heavy-duty welded construction with rugged reinforced tubular steel (4) boom positions for optimum reach at required capacity Metered control release valve for precise lowering control Foldable for easy storage Meets or exceeds ASME PASE 2014 standards Base Length: 65" Base Width-Front: 39-3/8" Base Width-Rear: 33-7/16" Height: 57-1/2" Folded Height: 58" Wheel Diameter-Front: 3-1/2" Wheel Diameter-Rear: 3-1/2" Wheel Diameter-Mid: 3"