18mm Round Rotary Cutter Blades ( 3 Pack ) - Fits Olfa, Fiskars, Dritz, Clover, and most 18mm Rotary Cutters ( 3 Pack ) High quality Round 18mm Razor Edge Rotary Cutter Replacement Blades Cuts through multiple layers of material. Perfect for fabric, paper, vinyl, plastic Fits Olfa, Fiskars, Dritz and most Rotary Cutters that take 18mm blades Affordable multi packs of replacement blades ideal for seamstresses, dressmakers, crafter, and hobbyists RTFI Brand by Ruth's Tree Farm