Eases loading and unloading of trucks at docks and facilities. Levelers are installed in a concrete pit in the ground or in a pit in a raised concrete dock. Include 8'Lx6'W deck and legs. 20,000-lb. capacity. 4" tilt for servicing inclined trucks. Combination cross traffic supports burglar proof lip lock. Other sizes and custom applications are available, call for information. FOB IN. Made in USA.