AUTOTOOLHOME 15-Pack Rotary Cutter Blades 45mm Fabric Paper Cutter Refill Blade Quilting Sewing Tool Perfect Blades for quilting, sewing,art and crafts:Rotary cutter blades can be used to cut fabric, fleece, felt, vinyl, leather, cardboard, wallpaper, and more. 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 SAVE TIME: Precision cut up to 6 layers of fabric in one pass Durable- Tungsten alloy adds strength and wear-resistance, while lubricants keep them in mint condition until youre ready to use them