But with a conventional jack, it's challenging to properly lift and hold a unibody vehicle, because once the vehicle is raised with a jack, there's no space left to add a jackstand. The Powerbuilt 3 Ton All-in-One solves this problem with an ingenious design that both safely lifts and securely holds a Unibody vehicle using a single lift point. The Unijack offers both concave and flat lifting surfaces to accommodate a wide variety of lift points. What's more, it eliminates the cost and hassle of a floor jack, it's easier to lift, move and store and costs a lot less too.The 6000 pound All-in-One offers lift range from 11 to 21 inches, which makes it perfect for trucks, SUVs and vans. Patented design both lifts and holds by combining a bottle jack with a jack stand in one unit Lifts and supports a variety of vehicles with 6000 pound capacity and lift range of 11" to 21" Safe for lifting Unibody and body-on-frame vehicles Wide flat base adds stability and reduces "sinking" on softer surfaces Stylish and affordable Powerbuilt products meet or exceed ASME and PALD standards.