Sew Easy 12-1/2″×12-7/8″ Triangle Ruler NL4205 Quilt Patchwork Quilting Sewing Tools

Quilting Template by Sew Easy 12-1/2″×12-7/8″ Triangle Ruler, Perfect for making patchwork quilts. Makes a great gift, collect them all! Designed by Darlene Zimmerman.

https://shoppers-planet.com/product-category/quilting-accessories-and-templates/

Many Other Types and Sizes available.