DAFA Professional 18" x 12" Self-Healing, Double-Sided Cutting Mat, Rotary Blade Compatible, (36x24), (24x18), (18x12), (12x9) Sizes, for Sewing, Quilting, Arts & Crafts

Please note: for ease of comparison, mat sizes are rounded to the nearest inch. Exact sizes are as follows: A1(35.5in x 23.6in, 900mm x 600mm), A2(23.6in x 17.7in, 600mm x 450mm), A3(17.7in x 11.8in, 450mm x 300mm), A4(11.8in x 8.7in, 300mm x 220mm)