The new model 50-035 Heavy-Duty Mobile Base from General International has a 1,000-pound carrying capacity. The all-steel base has four heavy-duty 3" wheels (two fixed and two on swivel casters) for easy maneuvering into tight locations. Two adjustable leveling feet allowing leveling the load after parking. Four tubular steel corner brackets are equipped with a series of mounting holes that make the base width and length adjustable in 1" increments. the 50-035 can be assembled to a minimum square size of 22-1/2" x 22-1/2" or to a maximum size of 29-1/2" x 34-1/2". Retail price is $129.99.