This Omnigrid cutting Matt from Prym is an indispensable tool for accurate cutting of (patchwork) fabrics. The cutting Matt has clear grid lines on both sides - on one side a size scale in centimetres and on the other in inches. The Matt is made of sturdy plastic that prevents damage to the work table, while the material is soft enough not to dull the cutting blade of the rotary cutter. Always use a rotary cutter suitable for the cutting mat; when used correctly it will not damage the Matt irreparably.