Sealey trolley jacks 2320t sealey 20qj this 20t trolley jack from sealey features a heavy duty chassis with one piece hydraulic unit handle mounted safety release prevents inadvertent lowering of load fitted with foot operated quick lift system includes large diameter saddle for easier positioning under the jacking point the jack has twin wheels on the front axle for added strength stability and for smoother mobility fitted with safety overload valve sealey 20qj trolley jack 20tonn