The Silhouette Rotary Blade for Cameo 4 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 stabiliser backing. The Strong Tack Cutting Mat may be recommended for use with some materials when using the Rotary Blade for Cameo 4.