The Premium Blade is made of a sintered tungsten alloy composed of super-fine powder for extra durability. It can provide up to three times the lifespan of a regular blade under normal cutting conditions. Silhouette blades provide the ability to cut various standard materials with a Silhouette precision cutting machine. This includes paper, cardstock, vinyl, vellum, heat transfer material, sticker sheets, and select specialty media. Please visit the tools compatibility chart for further information on tool compatibility. Product Details: Blade Material: Tungsten Alloy (High-performance) Adjustment Method: Manual adjustment (turned by hand)  Blade Length Range: 0.1 mm - 1 mm For use in cutting: Paper Cardstock Sticker Sheets Heat Transfer Materials Vinyl Select Specialty Materials Compatible Machines: Silhouette Cameo® 2Silhouette Cameo® 3Silhouette Cameo® 4 Silhouette Portrait® Silhouette Curio™ * Newer machine models require a tool adapter to use this blade. Videos: About the Silhouette Premium Blade About Silhouette Blades * This blade will be delivered with a blue cap, or a lavender cap depending on inventory availability