A cutting mat forms the foundation of your cutting station so quality is key when it comes to choosing the perfect cutting mat. Omnigrid Double-Sided Cutting Mats are manufactured and printed to the same precise standard as their rulers. Use the two together and you've got the best cutting system available! There are multiple Omnigrid mat sizes for you to choose from. Select the mat size that's right for you based on what you're cutting and how much space you have in your sewing or quilting room. The smallest size is excellent for foundation piecing, while the next size is perfect for taking with you to classes and guild meetings. The 12" by 18" is great for fat quarters, and the two biggest sizes can be used to cut borders, bias strips, and standard folded fabric with a width of 45".