We have Kai 28mm, 45mm, and 60mm Rotary Cutter Blades from straight blades to pinking blades for immediate shipping. These blades are made out of high quality tungsten steel, and are the longest lasting blades in the industry. Yes, they will fit other manufacturers’ rotary cutters too. Our Kai Rotary Cutters are ergonomically designed and are ideal for fabricating face masks, quilting, dressmaking, drapery workroom, tailors and leather fabrication. Please shop us at www.scissormanusa.com. We are also running a 5% off Welcome 2022 Sale on all our scissors and shears through March 31, 2022.