Signalinkjet Laminating Pouches are a great way to ensure that all of your documents and display materials look great and last longer. They are ideal for use in schools, gyms, at home or in the office; and are compatible with all laminating machines. These pouches have been manufactured from high quality polymer and have a grade of 250 micron. 1 micron = 1000th of a millimetre... It's really straightforward. The thicker the laminating pouch the more rigid the final result is. The strong the micron, the better the quality of your laminating. Therefore, our pouches are strong, high quality and easy to use. Size: A4 Micron: 250 Quantity: 100 pouches