Sew Easy 7-1/2″×15″ 90 Degree Triangle Ruler NL4172 Quilt Patchwork Quilting Sewing Tools

Quilting Template by Sew Easy 7-1/2″×15″ 90 Degree 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.