This is a set of four Height Adjustable Legs compatible with the STANDARD production cart from adicam. Used in place of the standard, fixed-height cart legs, this height-adjustable set lets you raise or lower the top shelf of the cart within a range of 9.8'. The legs can be raised 2' higher than the height of the standard legs or lowered 5.9' lower than the standard legs. The legs are made of lightweight aluminum and can be adjusted without any tools required. The top shelf must first be removed before making any height adjustments to the legs.