Translucent Professional Self-Healing Cutting Mat  (12″ x 18″) by Alvin.  These self-healing and reversible 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. Hanging hole for convenient storage. This translucent series is gridded on one side only, and is perfect for use on light boxes or see-through applications. Find the perfect center on any project with zero centering lines.