Ruler for patchwork, quilting, sewing and other craft projects.
Ruler marking in two colors - yellow and black - can be recognized on light and dark fabrics too. There is a diagonal line in 45° on the ruler.
Patchwork ruler made by Omnigrid U.S.A. for Prym Germany.
Now you can find attached a brief printed handbook informing you about more company tools used in cutting techniques: various rulers with usage, rotary cutters and cutting mats.