The CRL Double-Sided 90-Lite Windshield Rack absolutely provides the most windshield storage space possible. This Rack has twice the capacity of the Wall-Mount Single-Sided Racks, and occupies only slightly more floor space. The welded steel construction, corrosion resistant enamel finish, polyethylene covered arms, and sturdy base give you an economical and efficient storage system that's easy to assemble or move as necessary. The support arms extend out 24" (610 mm), the spacing between the arms is 1-3/4" (44 mm). Assembly requires no special tools, and all hardware and instructions are included.