This mini jack lift is so useful if you have a big bike lift, especially if you want to raise one or both of the wheels off the deck of the lift. It is particularly useful when working on Harleys, choppers of even metric cruisers. We have had this model in our workshop for years and it has been invaluable on so many occasions. It comes with a pair of cup extensions which are independently adjustable which can be very useful when lifting a bike with uneven lifting surfaces underneath. It has a 'tommy' bar but can also be operated with a socket as well. It can be used on the floor as well, but our days of grovelling around on the floor underneath bikes are long gone.