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 prevents 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". *Do not use an impact-style wrench to raise or lower the jack.