American International Electric AIE-RS3 Hand Held Constant Heat Roller Sealer, Unlimited Length, 1mm Width, 6mil Thickness and 70W Seal Polyethylene or cellophane by moving the 2-1/4" diameter Ptfe fabric coated wheel along the material to be sealed This versatile sealer can make a round oval or square textured 5mm seal Adjustable temperature range from 150 ~ 300F Maximum seal length: Unlimited, Seal Width: 0.04" Material thickness: 6 mil, Watts: 70 W, Weight: 1.5 pounds