The cutting mat is intended to be used with the Cameo® silhouette to maintain the materials in place when sending work to the silhouette machine. The carpet has a high level of adhesive to retain the fabric and other thicker materials . The carpet has a printed grid that coincides with a virtual carpet on the screen in the Silhouette Studio® software for greater ease of use. Cutting size zone: 20 cm x 30 cm. Types of materials: fabric, thicker materials with the Silhouette Portrait 1, 2 and 3. machines not compatible with Portrait 4.