Titanium Coated for Longer Cutting Life -- These 45mm rotary blades are made of SKS-7 Japanese steel with titanium coating, offering sharp cutting performance, better wear resistance, and longer-lasting use compared with standard uncoated blades. | Wide Compatibility -- Designed with a standard 45mm size and universal center hole, these replacement rotary blades fit most common 45mm rotary cutters. | Ultra-Sharp & Smooth Cutting Edge -- Precision-ground circular blades help deliver clean, smooth cuts without snagging or fraying edges. Cleanly slices through 10 layers of fabric at once.Ideal for straight lines, patterns, and detailed craft work. | Precision Multi-Material Cutting -- Perfect Rotary Blades for sewing supplies, quilting supplies, scrapbooking and for all types of arts & crafts.The ideal cutting fabric, felt, fleece, paper, vinyl, cardboard, leather, wallpaper, and other craft materials. | 10 Refill Pack Easy Replacing -- Includes 10pc replacement 45mm rotary cutter blades, comes with a clear storage case to help keep extra blades organized and protected.making it an essential blade upgrade for both home and professional use.