From the Manufacturer
This Irwin SET150 6-piece clamp set is a great value. Included in this set are 2 12-inch Quick Change Quick-Grips which can be used as a regular bar clamp and can convert into a spreader as well. You also get 2 6-inch mini bar clamps which are great for your smaller clamping needs. Also included in this set are 2- 2-inch Handi-Clamps which provide speed and convenience with adjustable pressure. The jaws are designed to reach around odd shapes, just squeeze to adjust, and lock and click to release. The Quick Change and the Mini Bar Clamps feature a unique pistol grip handle that allows you to hold the clamp and slide the jaw to work with one hand. Other features include a quick-release trigger, durable pads, and heat treated steel bar for increased tool life.
IRWIN Tools SET150 Bar and Spring Clamp Set, 6-Piece. Contains: (2) 12" bar clamps, (2) 6" mini bar clamps, and (2) 2" spring clamps