The center-lift design of the Extreme Max Wide Motorcycle Scissor Jack is perfect for most motorcycle maintenance needs. Without the optional dolly, the jack lifts to an extended reach of 14” while the 15-1/8” x 9” platform holds your bike with a rubber padding that protects against scratching and adds stability. The jack is operated manually by using a 7/8” socket or wrench (sold separately). Measurements: Extended height: 14”; Collapsed height: 3-3/8”; Base: 15-1/8” x 9”; Lifting platform: 15-1/8” x 9”. Not designed to lift trikes. Do not use an impact-style wrench or powered drill to raise or lower the jack.