Hand held constant heat roller is suitable for sealing plastic, polyethylene and cellophane. With a 57mm dia Teflon coated wheel, this versatile sealer can make a 1mm, 5mm or 9mm round, oval or square seal. Simple to use, the sealer comes with a convenient rack that keep the sealing wheel suspended above the work surface. The temperature is user adjustable and ranges from 30 - 220 degree C.