Large reversible mat with easy‑to‑read grids for dressmaking, quilting and poster work. Side 1 is grey with black angle markings and imperial measurements; Side 2 is blue with white metric markings. Overall mat size is 26″ × 38″ (66 × 97 cm) with a working grid of 24″ × 36″ (61 × 92 cm). Provides a protective cutting surface and precise guides for long cuts.