The IRWIN QUICK-GRIP clamp set ensures you will get the clamping performance you need for nearly any clamping job. The set includes four 1-handed mini bar clamps, 2 HANDI-CLAMP clamps, and 2 resin spring clamps ideal for smaller projects and clamping in confined spaces. The 1-handed mini bar clamps have a patented pistol-grip design for increased comfort, non-marring pads to grip firmly and protect work, and exert up to 150 PSI of pressure. The HANDI-CLAMPs have Quick-Release triggers, a ratcheting mechanism to adjust clamp pressure, and significantly reduce the hand-force needed to generate pressure, making these clamps more comfortable to use. Constructed of durable, high-tech reinforced resin, these clamps are backed by the IRWIN Lifetime Guarantee.