Up to 20 inch lift from ground to wheel saddle for maximum space to perform necessary mower maintenance. 350lb Capacity. Easy, convenient hydraulically powered foot pedal operation. Can hold a minimum of 14" span and up to a 51" span mower with rubber coated saddle to prevent unwanted movement. Welded solid steel construction. Positive dual locking safety latch for added safety. Four steel wheels for sturdy mobility. U.S. Patent #8,469,338.