The Stainless Steel Scallop/Peak Blade is two blades in one. Use one side to create a scallop design and flip to create a peak design. The stainless steel blade is sharp and durable for cutting decorative edges on fabric, fleece, paper, and more. The scalloped edge is perfect for scrapbooking, card making, quilting, and other crafts. For use only with OLFA® 45mm Ergonomic Rotary Cutter (RTY-2/DX). Always use an OLFA Self-Healing Rotary Mat to protect work surfaces and prolong blade life.