Effortlessly cut mark and stitch -square or -square triangles without ever cutting a triangle, or guessing at the sizes. Use No-Hassle Triangles Gauge to make five block sizes for both – & -triangles 2-1/2 (64 mm) 3-1/2 (89 mm) 4-1/2 (114 mm), 5-1/2 (140 mm),and 6-1/2 (165 mm). Reference left side of gauge for -square and right side for -square triangles.