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 a compact, reusable plastic storage container. * Made of: Carbide Steel * Size 45mm * Use: Replacement Blades