Fiskars 199070-1001 Rotary Cutting Blades, Style F, 28mm Ideal for cutting multiple layers of fabric, paper, felt and even vinyl Magnetic blade change system makes replacing a blade quicker, easier and safer Slim design offers a clear line of sight to improve the precision of right- and left-handed users Premium steel 45 mm rotary blade features a titanium coating that is 3X harder than steel for improved durability and lasting sharpness Full lifetime warranty (excludes blades)