Jorgensen 33418 ISD-3 18-Inch One-Handed Clamp This item is Jorgensen 33418 ISD-3 18-Inch One-Handed Clamp Used for Handtools & Tool Organizers, Clamps The product is manufactured in Taiwan Connect two ISD-3 clamps to make one large clamp Exclusive, patented design, only clamps like it on the market today 76% more clamping force than competition New quick release knob for fast and easy changeovers 1 Year Limited Warranty