This efficient rotary blade from Silhouette will come in handy to cut a variety of craft materials like cotton, flannel, denim, tulle, and more. When attached to the compatible cutting mat, this blade will cut the desired material by rolling across it, without the need of a special stabilizer backing. Details: Fits the right, high-pressure carriage of the Cameo 4 Plastic and metal Compatible with the Silhouette Cameo 4 cutting mat (sold separately) Recommended for use with a strong grip high-tack mat