Due to the extremely high accuracy given by the marks in centimeters, millimeters, it can achieve professional effect Patchwork quilting ruler crafted from acrylic, light in weight, break resistant Suitable for all types of patchwork, quilting, sewing, pattern, quilters templates and craft project the clear color allows you to see Square for 2-1 / 2inch cut and star for 1-1 / 2inch cut, without math required! Cut five 2-1 / 2 or eight 1-1 / 2inch strips The patchwork ruler is provided with clearly marking and precisely scale, for precisely cutting and sewing project