Thangles 3.5" Finished The fast, easy, and accurate way to make half square triangles from strips. No more 7/8" math! Just add 1/2" and cut strips! Thangles 3.5" Finished size makes 200 half square triangles from 4.0" fabrics strips. Each pack contains THANGLES templates made with easy tear paper and fully illustrated step by step instructions Available in sizes from 1/2" to 4" Made in USA