An A4 steel spine with leather look or metallic finishing, and frosted plastic/acetate front and back covers with score to enable flat opening. A unique patented polymer within the u-shaped channel of the spine guarantees a secure and long-lasting bind but still allows your document to be edited. Available in various sizes up to 340 pages and for use with the Unibind thermal binding machines. The Unibind SteelMat is opaque enough to see and read the title page below and can be personalised with your own logo.