Catch the wave and add fun effects to your scrapbook projects and crafts With the 12-inch Trimmer Wave Blade This interchangeable blade cassette features a durable circular blade that creates a delicate wavy line perfect for decorating borders, mats, photos and more, and it good for up to 1,500 cuts. The blade is encased in a safety cover so edges are never exposed until it's placed in the blade housing and pressed down to initiate contact. It's great for adding fun decorations to any project Designed for use With the 12-inch Trimmer (not included).