The HuRTy 1 ruler takes the pain out of sewing Half Rectangle Triangles. It is a cutting and trimming ruler that makes cutting and sewing a breeze. You get your wonderful precision in squaring them up! It makes 14 HRT sizes including 11 with the most popular HRT ratio of 1:2 with the smallest being 1" x 2" and the largest 6" x 12". It also includes fun skinny 1:6 HRTs. from 1" x 6" to 2" x 12". Scan QR Code on ruler to access video tutorials and other support material.