Irwin Vise Grip 19 11" Regular Tips Locking C Clamp Versatile wide-opening jaws clamp a variety of shapes. Guarded trigger provides quick release while helping prevent accidental release. Locking clamp is constructed of high-grade heat-treated alloy steel for maximum toughness and durability. Adjust pressure and work fit with turn screw that stays adjusted for repetitive use Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.