Creative Grids® 45mm Rotary Blades are designed to work with the Creative Grids® Rotary Cutter (CGRCUT45) and fits most other 45mm rotary cutters. The carbide steel blades are sharp and durable. They easily glide through fabric, vinyl, cork, and more. Creative Grids® Rotary Blades come in three compact, reusable plastic storage containers. • Made of: Carbide Steel • Size: 45mm • Included: Fifty 45mm Rotary Blades • Use: Rotary Cutting Creative Grids® products are sold through independent quilt shops as well as select online retailers. Creative Grids® products have a MAP/IMAP (Minimum Advertised Price/Internet Minimum Advertised Price) Policy. Please do not advertise them for less than the suggested retail price.