Description Quality self-healing and reversible cutting mats; fully numbered and gridded on both sides (1/2″, 1/8″, 45° and 60° angle lines). Made from 3-ply long lasting 2mm composite material with a non-glare surface. Designed for rotary and straight utility blades. Will not dull blades. Find the perfect center on any project with zero centering lines. (WARNING: This product contains diisononyl phthalate, known to the State of California to cause cancer. For more information, go to – www.P65Warnings.ca.gov.)