Penguin A4 laminating pouches are 150 micron gloss pouches for use in any standard hot pouch laminator, supplied in a box of 100. Each pouch is a pair of clear film sheets sealed along one edge; an A4 document is placed inside and fed through the laminator, where heat and pressure bond the two films around the page. The result is a rigid, wipe-clean, water-resistant document that stands up to frequent handling. At 150 microns this is a mid-weight pouch, stiffer than the thin 80 micron grade used for occasional documents, and well suited to notices, signs, menus, price lists, schedules, certificates, ID and reference cards, and children's work in offices, schools, shops and restaurants. The gloss finish gives bright, saturated colours and a smooth surface. Check that your laminator supports 150 micron pouches before use; most modern A4 office laminators do. The box contains 100 A4 pouches. Penguin is a stationery brand distributed in South Africa by Kolok.