This 1ton Capacity 12-Volt Electrical Scissor Jack - Plugs into Car Outlet makes the replacing tire job easy and fast. The merit of this jack: operate simply, don’t need to shake hardly the jack by hand. The design is scientific, small compact and portable. It allows you to change tire, snow chains or perform simple repairs without all of the effort required with a manual jack. 1.The scissor jack with tooth gears, can be extend from 165mm(close position) to 385mm, more than enough to lift most vehicle. 2.Easy to operate using the chromed crank with speed handle. 3.Small foldable size for easy storage. 4.Easy-to-use swivel handle are all included. 5.100% manufacturer tested for reliability and safety.