Set contains (2) 6 In. mini and (2) 12 In. clamps. One-handed trigger releases the clamps instantly. Non-marring pads grip firmly and protect work. Clamps evenly distribute up to 140 Lbs. of sustained clamping force. Resin construction with hardened steel bars prevent flexing and bending. Ideal for clamping smaller workpieces and working in confined areas.