AUTOTOOLHOME 18mm Rotary Cutter Blades,10 Pack, Best for Crafters, Quilters, Scrap Bookers, Super Sharp For Neat Cuts, for OLFA Fiskars TRUE CUT Brand Cutters The secret behind the sharpness is 4 individual sharpening stages so you get a flawless cut every time. Made from high-quality Carbon steel SKS-7 so that you can use each blade again and again with minimum dulling. Fits your rotary cutter - compatible with ALL rotary cutters including Fiskars & Olfa. Use on both fabric and paper Package includes 10PC 18mm Rotary blades