Alvin Self-healing, reversible 3mm thick mats. Durable composite vinyl material, for use with rotary and straight utility blades, can be cut without showing cutting lines. Printed grid pattern includes guide lines for 45° and 60° angles and 1/2" grid lines (mats 24" x 36"+ & above have horz. & vertical graduated marks). Fully-numbered edges are graduated with 1/8" marks extending beyond zero baseline. Non-stick surface is impervious to abrasions and liquid spills. Black on 1 side, green on the other (gridded on both).
8-1/2" x 12"