IRWIN QUICK-GRIP 1964758 One-Handed Mini Bar Clamp 4 Pack, 6" NON-MARRING PADS: Grip firmly and protect your workpiece from scratches and scuffs QUICK-GRIP DESIGN: One-handed triggers release the clamps instantly STURDY: Resin construction with hardened steel bars to prevent flexing and bending 140LBS of force: Keep your workpiece together and evenly distribute 150LBS. of force EASY-TO-USE: Ideal for clamping smaller workpieces and working in confined areas