Features: 1. Last much longer than traditional steel rotary blades. 2. Save you money on those expensive Big brand rotary blades. 3. Cut multiple layers of fabric effortlessly. Be less painful on the hands if you have pain in your hands from using scissors. 4. A Huge Time Saver - Whether youre the occasional or frequent sewist these blades are going to save you time and frustration. We knows all too well about how much time cutting fabric takes. Cutting fabric is one of the most time-consuming tasks we sewists/quilters have. That's the reason we want to help speed up your next project. 5. More Effective Than Scissors - If you havent used a rotary cutter before you need to Every serious quilter is using one and its one of the most important tools you can have. It allows you to cut fabric accurately and easily. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow slight deviation due to manual measurement. Specification: Blades size: 28mm/45mm Blades material: Stainless steel tungsten steel Scope of application: cutting paper fabric leather plastic includes: Choice 1: 1 x Rotary Cutter Choice 2: 5 x Blades "