This Silhouette AutoBlade is available exclusively for the Cameo 4. With the AutoBlade, you don't have to manually adjust your blade! Simply let your machine do all the work for you. The Silhouette Studio software program will provide recommended cut settings for common material types, and you can adjust them in the software as desired. Then, when you send your design to your Silhouette, your machine will automatically adjust your AutoBlade to the blade setting you chose in the software. Sit back and watch your machine work its magic.