The DELTA 50-345 Universal Mobile Base lets you easily and safely move machines out of the way when not in use, so you"ll be able to maximize the space in your shop. The 50-345 fits most base sizes and will hold up to 300 pounds; you simply add your own hardwood rails. The mobile machine base features a foot-operated control lever that lets you easily raise and lower the base for either moving or locking it in place. When lowered into position, the base has adjustable foot pads to ensure even contact with the floor. It is made of durable steel.