Attach this Silhouette premium blade to your Silhouette cutting machines to create sharp edges and precise shapes. This sintered tungsten alloy blade is made using super-fine powder for added durability. This strong blade has a lifespan of up to three times than that of a regular blade. Details: 0.1 mm to 1 mm blade size6 blades Sintered tungsten alloy and plastic Manual adjustment For use with Silhouette Portrait, Curio, Cameo (original), Cameo 2 and Cameo 3 machines (sold separately)