GBC Standard ThermaBind A4 Cover 200gsm 1.5mm White (Pack of 100) IB370014Designed for the GBC ThermaBind system, these 1. 5mm Standard Thermal Binding Covers can bind up to 15 sheets, to provide a stylish and professional finish to your bound documents. The 150 micron transparent PVC front and 240gsm white silk finish back forms a secure spine for presentations, reports and projects. This pack contains 100 binding covers. Binding cover designed for the GBC ThermaBind system Binds up to 15 x 80gsm sheets Capacity: 1. 5mm