Bora Tool 28x33.5 Super-Duty All-Swivel Mobile Base is an industrial-strength, fully adjustable rolling platform designed to effortlessly move even the heaviest equipment around your workshop. Built with rugged, contractor-grade construction, this mobile base supports up to 1500 pounds (680 kg), making it i for larger and heavier square or rectangular objects such as metal cabinets, toolboxes, and safes. It adjusts from 20.75 x 23.75 inches to 28 x 33.5 inches, with increments of one inch to fit a wide variety of machines. The low-profile design increases machine height by less than one inch, while the four 3-inch all-swivel, non-marring ball bearing wheels and foot-operated steel locking levers provide smooth mobility and secure stability. Model Number: PM-3550