12in x 18in SelfHealing Cutting Mat Durable selfhealing 5layer construction. Reversible design with a dark background on one side and a light background on the other. Easytouse layout with two sets of corresponding numbers for reading left to right or right to left. No more counting backwards Accurate 1in grid with 18in marks for precise alignment as well as 30, 45, 60 and 90 degree guide lines to help the cutting process.
