Introducing the Rotary Lift RJ9100Y 1BK - a high-quality air-operated scissor-style rolling jack assembly designed for the SM180/181 family of 4 post lifts. This versatile jack allows you to lift a vehicle for "wheels-free" brake, suspension, and tire service, providing greater accessibility and efficiency during maintenance. With rail-engaging wheel assemblies that are adjustable for an inside runway width of 40 3/4" (1035 mm) minimum to a 49 1/4" (1251 mm) maximum, this jack is compatible with a wide range of vehicles. The RJ9100Y 1BK also has heavy-duty urethane compression wheels, ensuring it rolls smoothly during use. It includes multiple truck adapters, adapter extensions, and varying-sized rubber pads for added flexibility. With a latch assembly that locks at the total rise and releases effortlessly, this jack is the perfect addition to any workshop looking to increase its capabilities.