Professional quality for all kinds of graphic arts, hobby, craft, shop, and industrial applications. These self-healing cutting mats are 3mm thick and extra durable. Made from a unique composite vinyl material designed for both rotary blades and straight utility blades. They provide a long-lasting, non-glare surface that can be cut and slashed constantly without showing marks or cutting lines. Can also be used as a desk blotter or general purpose work mat. Printed grid pattern includes guidelines for 45° and 60° angles and ½" grid lines. Zero centering line. All four edges are fully numbered and graduated with 1/8" hash marks that extend beyond the zero base line for convenience. Includes internal horizontal and vertical graduated hash marks. Non-stick surface is impervious to abrasions and liquid spills.Translucent with printed grid on one side only. Perfect for use with lightboxes or other see-through applications.