The 30x30cm cutting mat for Silhouette Cameo, in the Strong version with a stronger adhesive for thick materials such as cardboard or fabric, is the accessory that secures the material to the cutting machine's work table during the automatic cutting process, ensuring that the paper, cardstock, vinyl, or other material does not move while the blade is working. With wear and tear, the adhesive surface loses its grip, so this accessory should be replaced periodically to maintain cutting accuracy.