1500 lb. dual wheel tongue jack by Dutton-Lainson Company. Model 6800A Dual wheel pivoting tongue jack, 1500 lb capacity. Two 6-inch wheels for added stability. 12 inches of travel, for tongues up to 28 inches from the ground. Zinc TUFFPLATE finish. Bolt-on mounting, side handle type, 6" dual wheels, 12" travel, 28-1/2" maximum tongue height, 3/8" swivel pin diameter.