Each heavy duty jack includes a large 5" by 8" rectangular steel base plate and frame mounting plate. All scissor arms are engaged by means of tooth gear design to ensure straight vertical extension and retraction. The jack is black e-coat and the handle is zinc plated for long life. The jacks extend from 4" to 24 3/16" or 30" and have 7,500 lbs capacity per jack (24002C is 5,000lb). Jacks come with one handle per set of 2. Deluxe Swivel Hex 3/4 inch Handle