For sale is a Group of (3) Super Heavy Duty C-Clamps. (2) Clamps have a 4-1/2" maximum opening and 2-3/4" throat depth. These are 9" X 6" in overall size (less screws and handles). (1) Clamp has a 6-1/2" maximum opening and 3" throat depth. This one is 11" X 7-1/2" in overall size (less screws and handles). All three are marked "Made in USA". Approximately 40 pounds total net weight. These clamps will ship in a USPS large flat rate box.