The Kraft Blade from Silhouette gives you the freedom to create anywhere, anytime. That's why the blades and tips that you can use with the die cutting machine are super easy to use and can offer limitless boundaries to your imagination. The Silhouette Kraft Bladecan be used to cut fabric in any of the CAMEO models, the Portrait and the Curio. To adjust the blade, use the ratchet that came with the blade or the built in ratchet on the actual Silhouette machine. Just insert the tip of the blade and twist. When inserted and locked into the machine, the fin on the blade's housing should be pointing to 6 o'clock. The fabric blade should only be used to cut fabric. The fabric blade is exactly the same as the black ratchet blade with the exception of the casing. It is simply in a housing so it can be easily distinguished and used exclusively for fabric. The Silhouette Kraft Blade is available for use with the Silhouette Came 3 and the Silhouette Portrait. It can be used in tool chamber 1 of the Silhouette Cameo 4 with a special adapter. The Kraft Blade allows you to cut specialty craft materials, such as chipboard, acetate, leather, and craft foam. The strong back cutting mat may be recommended for use with some materials. The Strong Tack Cutting Mat may be recommended for use with some materials when using the Rotary Blade for Cameo 4. The Silhouette Kraft Blade is available exclusively for the Cameo 4. The Rotary Blade for Cameo 4 provides an alternate method of cutting by having the blade roll across your material. This enables you to cut a variety of specialty material-including cotton fabrics, leather, felt, wool, and more-without a special stabilizer backing.