When coupled with a work surface (purchase separately), the Hydraulic Lift Base Stand becomes an adjustable height table. Add mobility with 5" diameter casters (purchase separately). Working height is infinitely adjustable from 26-3/4" to 34-3/4" high. The durable 1-3/4" frame is mounted on powder-coated, die-cast feet with levelers which can be replaced with the 5" diameter casters. They support loads up to 1,000 pounds. Hydraulic Stands are available for manual or electric operation.