Heavy‑duty self‑healing mat for rotary and craft cutting. Double‑sided design features imperial grids on one face and metric on the reverse to suit any project. Three‑ply construction protects tables and prolongs blade life. Clear angle guides (30°, 45°, 60°) and ruled gridlines support accurate squaring, trimming, and bias cuts on quilts, garments, and paper crafts. Green surface reduces visual fatigue.