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 stabilizer backing. The Strong Tack Cutting Mat may be recommended for use with some materials when using the Rotary Blade for Cameo 4. Please visit the tools compatibility chart for further information on tool compatibility. Imported.