Suitable for filing A4 documents, this extra heavy duty Guildhall GL Ergogrip ring binder features a wide 2 ring mechanism and 55mm spine with double recesses for easy handling Designed for frequent use, the binder features durable black polypropylene covers and can hold up to 400 sheets of A4 80gsm paper Ideal for colour coordinated filing, the binder has black covers with a bright blue spine This pack contains two A4 binders