The Clam Shell Sealer is equipped with two heated 3/8" wide and 10mm long serrated jaws. It has two temperature settings, 180 & 210 degree C (350 & 450 degree F). Ideal for sealing poly packing cases such as clam shell and other similar types of containers. Handles remain cool during operation. The sealer can be used in the voltage range of 100-240v.