This self-healing cutting mat features grids and markings in both inches and centimeters -- one on each side.

Omnigrid Double Sided Mat Inches/Centimeters, 12in x 18in/30cm x 45cm

Features:
This self-healing cutting mat features grids and markings in both" and centimeters-- one on each side
The inches side has a 12in x 18in grid spaced every 1in with 1/8in increments on the edge rulers
The centimeter side has a 30in x 45cm grid spaced every 1cm with 1/2cm increments on the edge rulers
Both sides also have 45-degree angles lines included