BUY IT NOW, SALESMAN SAMPLES, (3) PC GU1W HEAVY DUTY TOGGLE CLAMP AND (1) GLBU1 CLAMP WITH FORGED MAIN LINK WITH WELD ON BASE, HANDLE AND ARM AND ALSO HAS STEEL HEAVY DUTY GROUND PIVOT PINS. BLACK OXIDE FINISH. ONE OF THE CLAMPS IS CADMIUM PLATING. ALSO INCLUDED ARE ADDITIONAL BASES FOR YOUR CHOICE FOR THE CLAMPS THAT DO NOT HAVE BASES WELDED ON. SEE PHOTOS OF CLAMP AND CATALOG PAGE FOR THE GU1 CLAMP. SOME PARTS HAVE BEEN WELDED ON ALREADY TO A STANDARD CONFIGURATION BUT YOU CAN CUSTOMIZE THE OTHER ONES FOR YOUR APPLICATION. THE DIMENSION FROM BASE TO BOTTOM OF CLAMP BASE ARE IS ABOUT 1 3/4". USE THE CATALOG SHEET ATTACHED FOR OTHER DIMENSIONS. THESE CLAMPS LAST FOR EVER, STRONGEST HOLDING PRESSURE RATED TOGGLE CLAMP MADE FOR ITS SIZE. WE WERE A DEALER FOR THESE CLAMPS AND HAVE CLAMP SPINDLES AVAILABLE TO FIT THESE CLAMPS. SEE MY OTHER ITEMS. MADE IN USA. LOCAL PICK-UP AVAILABLE.