This Laminator are segmented on usage; how often they are used and the type of purchase they accept. The thicker the pouches accepted, the more versatile the machine & the more applications for which it can be used. Laminating pouches are available in different thicknesses which are measured in microns-the higher the number of microns, the thicker the pouch. 1 year warranty Geomaster supply 5 different type of pouch from 80 micron to 250 micron which can be used for many different applications. * A3 Laminator - Suitable For Office , Home School Use , Can Laminate A3 , A4 , A5 .... (Maximum A3 Size )