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 1in x 2in and the largest 6in x 12in. It also includes fun, skinny 1:6 HRTs. From 1in x 6in to 2in x 12in. Scan QR Code on ruler to access video tutorials and other support material.