Designed for comfort, durability and performance, Studio Pro high quality glass tools and accessories are an excellent value and will quickly become a favorite for any stained glass project. Pattern shears are the secret to creating perfectly fitting glass pieces! These shears will cut away a strip of paper that is the same thickness as the strip of lead you will use to create your project. You'll find that ending the frustration of lead projects that don't fit together will be sheer enjoyment!