They are made out of carbon steel and are designed with a universal opening so they will fit on other 45mm rotary cutters. Each pack comes with 5 blades.
They are made from carbon steel.
They can cut through multiple layers of fabric, leather, fleece, vinyl, denim, and other dense materials.
Please note: the blades are coated with oil to keep them protected from humidity during transportation. We recommend wiping them off with a scrap piece of cloth before use to avoid staining your project.