OLFA rotary blades are the original specialty cutter for fabric, leather, vinyl, and paper. The OLFA 28mm RB28-2 Tungsten Steel Rotary Blade is perfect for precision cutting when you need small details or tight curves in your sewing or quilting project. Tungsten tool steel rotary blades promise a high-quality blade edge that stays sharp for accurate repeated use. This set of two blades will fit 28 mm rotary cutter handles. Long-lasting, exceptionally sharp, and also offered in packs of five and 10, this is an essential blade for fabric, textile, and paper crafters.