New Mover Mobile Rack model SK-X4VV-A59 is equipped with four support columns, each with 16 support bars, 23-in. long. Rear extension legs can turn the unit into a double-sided rack. Swivel columns on each side supply V support on each end for small panels. The rack can also be extended out to 63-in. for larger panels. The SK59-X4VV is a very reasonably priced rack for the versatility it offers. Visit the company's booth #6973 at IWF.