Aanraku Studios Stained Glass Making Tool - Stop Blocks for Making Stained Glass Panels - Clear Glass - Industrial Theme - Manual Operation - No Batteries Required - Suitable for Teens;

If you like lead projects, but hate trying to keep your project in line, you'll love these stop blocks Designed to work with horse shoe nails, the blocks fit snugly to the edges of glass to keep your project from shifting when you're working on it. This ingenious tool is from Aanraku, and is made from high strength polymer material to ensure a long life. 25/pack. Horseshoe nails are not included.