These Snap clamps use a unique snap-on system to provide uniform and positive clamping in one smooth operation. As the handle is moved forward, the internal mechanism works to build tension. At a specified point, the tension is released and transformed into clamping force. This allows uniform clamping force with every cycle. The one piece body offers excellent durability and will not become weak or unstable after repeated use like traditional toggle clamps. The clamps are supplied with a steel spindle. Urethane tip styles are also available. The body and clamping arm are made from alloy steel with black finish. The handle is chrome plated steel with a plastic knob. Extension arms, mounting brackets and angle handle adaptors are also available.