THIS SUPER-TOUGH FLOOR JACK GIVES YOU THE POWER TO LIFT UP TO 44000 LB.. IDEAL FOR SERVICING TRUCKS AND FARM EQUIPMENT, THE FLOOR JACK HAS A LIFTING RANGE FROM 8-15/16 IN. TO 17-3/4 IN.. OTHER FEATURES INCLUDE 8 IN. DIAMETER WHEELS FOR EASY MANEUVERABILITY, FOUR SADDLE ADAPTERS AND A CAST IRON BASE WITH FORMED STEEL HOUSING FOR ADDED DURABILITY.