The IRWIN QUICK-GRIP Handi-Clamp features a QUICK-RELEASE trigger that makes positioning easier while allowing the clamp to release faster. This clamp is designed to be more comfortable to use with a ratcheting mechanism that requires significantly reduced hand pressure and makes the clamp easier to adjust. Constructed of high-tech resin, the clam has specially designed jaws to hold odd-shaped workpieces.Features High-tech resin construction provides strength and durability Patented ratcheting mechanism provides adjustable clamping pressure and significantly reduces hand force required to generate clamping pressure Quick-release trigger allows for fast and easy positioning and release Specially designed jaws hold odd-shaped workpieces Includes1X IRWIN Quick-Grip Clamp, Handi-Clamp, 4-Inch Clamping Capacity: 4 in Length: 9.6 in Width: 5.1 in Weight: 0.675 lbs Height: 1.2 in Material: Resin Country of Origin: China