These blades and tools are designed to work specifically with the Cameo 4, Cameo 4 PLUS, & Cameo 4 PRO. Expand the range of materials the Cameo 4 can cut with these specialty tools. The Kraft Blade allows you to cut materials such as acetate, leather, card stock, burlap. Use the Rotary Bade for felt, wool, cotton, and other fabrics. Weed quickly and accurately with the Punch Blade. If you purchased a Cameo 4 bundle from us and received a 20% off Coupon, it will work on any of the Cameo 4 specific blades.