Heavy duty, All Metal structure Infrared heating system. Solid big roller + Metal gear + Steel shell+ paper backward protection +accurate temperature control Economy in electricity :infrared radiation heating, speedy preheating for only 3 minutes Three fast: Fast preheating; fast laminating and fast Cooling Six-temperature adjustment, fit for different size and thickness of plastic pouch film The most popular laminating size:12.5′′,suit for A3,A4 or Letter size Paper. Dependability: Feeding paper smooth, no bubbles, no wrinkle, reverse switch to make it safer Two laminating function: Hot&Cold laminating Cold Laminating: turn the switch to “Cold” to start cold laminating Reverse function: turn the switch to ” Rev” if necessary. just take off the upper cover to operate