The GBC ThermaBind system, you can achieve a perfect-bound 'paperback book look' in seconds to give your documents a truly professional, 'published' feel. The secret lies in the unique, pre-formed ThermaBind Covers containing a high contact adhesive strip. The glue penetrates into the fibres of the paper to form a totally secure spine and permanently bound pages that are great for filing, stacking and mailing. It's a quick, clean process with no need for fiddly holes, tapes or fasteners. All ThermaBind Covers come with 150-micron transparent front covers for easy reading of the title page.