GBC HiClear Covers are made from crystal clear, durable PVC that is both spill and tear-proof for stylish, protected reports, manuals or presentations. The lightweight 150 micron thickness is ideal for adding a premium finishing touch to any document. These binding covers are ideal for use with ClickBind, WireBind, CombBind and CoilBind binding machines. This pack contains 50 A4 binding covers.