The Cameo 4 Tool Adapter Set provides 4 adapters that allow you to use Silhouette tools from previous machine models with the Silhouette Cameo® 4. The compatible tools you can use with the adapters are the Standard Blade, the Premium Blade, the Fabric Blade, the Deep-Cut Blade, the 2mm Kraft Blade, and the Silhouette Sketch Pens (only the Sketch Pens with the black bodies are compatible with the Cameo 4 tool adapter). These adapters can be reused.