This CMB900 Universal Mobile Base will keep your shop machine mobile. Made of heavy-gauge steel, it can support up to 273kgs (600 lbs) and accommodate a 305mm x305mm (12″x 12″) to 915mm x915mm (36″x 36″) machine. The four mobile base corners are adjustable for different plywood thickness from 12.7mm (1/2″) to 38mm (1-1/2″). The only assembly required is to cut a sheet of plywood (19mm recommended minimum thickness, not included) to size and bolt it into the four corners of the Universal Mobile Base. The Universal Mobile Base features two convenient, foot-operated control pedals for easy raising/lowering and two sturdy swivel casters for maximum mobility.