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. This blade can cut materials with thicknesses up to 1 mm and fits directly into the Portrait 3 and Cameo 4 series machines without needing an adapter. Not compatible with older cutting machine models. Details: Manual blade design 2'' x 0.75'' Cuts materials with thicknesses from 0.1 mm to 1 mm Manually adjusting blade settings Tungsten alloy (high performance) construction Use for paper cardstock, vinyl, and other specialty materials Compatible with Silhouette Portrait® 3, Cameo® 4, Cameo® 4 Plus, Cameo® 4 Pro