Use the OLFA Stainless Steel Pinking Blade to keep the edge of fabrics from raveling. This blade creates “teeth” on the edge of the fabric for a decorative and functional finish. The stainless steel blade is sharp and durable for cutting decorative edges on fabric, fleece, paper, and more. For use only with OLFA® 45mm Ergonomic Rotary Cutter (RTY-2/DX). Use an OLFA Self-Healing Rotary Mat to protect work surfaces and prolong blade life.