The Dritz® Seam-Fix™ double-sided seam ripper is a three-in-one sewing tool that features a small, fine blade seam ripper, a heavy duty blade seam ripper, and special rubbery tips for removing threads. Raised arrows on the center of the tool indicate the seam ripper size. Soft finger grips are located on both sides of the tool. Use desired blade size to cut unwanted threads and then whisk the cut threads neatly away with the special rubbery tip of the cap.