GBC Polyclear Binding Cover A4 300 Micron Frosted (Pack 100) IB386848 PolyClearViewô is a tough, recyclable, semi-clear binding cover designed to protect and enhance your title pages. They are spill and scratch resistant with a textured finish to reduce glare, giving a professional, stylish finish to any document. A4, 300 micron. Pack size: 100.