Silhouette Ultimate Sketch Pen Set includes 24 assorted colors designed for use with the Silhouette Cameo 4 and other compatible cutting machines. This comprehensive collection features a variety of finishes, including basic, glitter, metallic, and neon inks, allowing for diverse creative projects. The set also provides access to 10 exclusive sketch designs to enhance your digital crafting library. These pens fit directly into the tool carriage of the Cameo 4 without the need for an adapter, making it easy to convert any digital design into a precise, hand-drawn masterpiece. Perfect for card making, scrapbooking, and personalized stationery.