The Ideas C3852 20cm 60º triangle patchwork ruler allows you to cut equilateral triangles and half-stars with perfect metric accuracy. Made of high-quality transparent acrylic with a useful height of 20 cm and a fixed angle of 60 degrees, it includes graduated markings in centimeters parallel to the base. The cut-out top of the ruler aligns with the edges of the fabric to eliminate unnecessary points and facilitate the fitting of seam allowances. It is the ideal tool for making patchwork patterns such as "Thousand Pyramids", 6-pointed stars and three-dimensional hexagonal blocks.