The Omnigrid® special ruler is ideal for all 30 degree and 60 degree pattern pieces in patchwork projects. The sturdy plastic triangular ruler is easy to manipulate and is therefore an indispensable aid both for beginners and for experts in measuring and cutting triangles, half triangles, lozenges, trapeziums and hexagons. The measurements are clearly marked in centimetres and inches, which makes it easy to use patterns in different languages. Includes instruction book on basic cutting techniques!