Convert your Silhouette Cameo 4 machine, previous Cameo models, Portrait, or Cuiro into a sketching/drawing tool with Sketch Pens. Use sketch pens to draw elaborate designs onto various material surfaces or to add a hand-drawn look to your projects. This Sketch Pen Starter Kit is a great way to jump into the world of sketching with your Silhouette tool. It includes all sketch pen colors offered from Silhouette so you can get a sample of everything! No adapter required. Simply drop the sketch pen into your Silhouette machine where you blade would normally be loaded, and then lock it into place.