ARB's 48" Long Travel Hydraulic Jack is the ultimate option for off-road jacks! Powerful hydraulic technology smoothly jacks the vehicle up 1/2" at a time with each downward movement. To protect your vehicle from damage while using this jack it comes equipped with a black rubber bumper shield. The user friendly red lowering lever makes sure lowering the vehicle is a breeze and gives you the option of two different lowering speeds. To ensure the safety of the operator while in use ARB has integrated an internal blow-off valve to provide protection from overload and potential catastrophic failure. ARB also provides an optional jack base made from a heavy duty, high density polyethylene construction, capable of supporting up to 15,400 LBS with a non-slip textured base. This jack base gives you a larger and sturdier surface to operate the jack on while also limiting slippage and possible sinking into softer ground.