SL399 laminator designed for hot and cold lamination, fit for school and office supplies. Entry width is320mm, suitable for most of item size, range of laminating thickness is 80-150mic and the maximum lamination thickness is 0.5mm. For HOT laminating, select HOT setting, HOT laminating can begin when the green Ready light comes on (allow approx 2-4 minutes heat up time). For COLD laminating, select the COLD setting, the green Ready light comes on straight away and COLD laminating can begin. (please note you will need special cold laminating pouches) Any problem, please contact our store without hesitation. Honor to serve you.