Rotary 9,000lbs.-Capacity Rolling Jack for use with SM18 Series Lifts. This rolling jack comes with flip-up adapters to lift the front, rear, or all wheels off of runways for brake, tire, alignment, and/or suspension work. When not in use, the jack rolls out of the way to provide unobstructed workspace between the runways. The jacks easy-glide wheels also roll smoothly in the track, while a sweeper pushes debris away from the wheel.