Ribbons at bias perfectly formed by yourself the practical biases of Prym allow you to form any ribbon at an angle intended to hem the edges of the fabric or also the patchwork covers. By cutting the fabric ribbon at an angle of 45 degrees on the line of the tissue wire, the ribbon at an angle is elastic and can be perfectly treated in the curves. After cutting the fabric ribbons and connected to each other, the fabric is Introduced into the large opening of the device at an angle and drawn. On the flat side of this useful accessory, the perfectly folded angle ribbon can be removed and smoothed directly with the iron. Thus, the ribbon at an angle is made quickly and reliably and can be easily rolled up for subsequent use. To make its own biases. Also suitable for right ribbons. 1 - Cut the fabric into strips 2 - Pass the fabric strips in tool 3 - Attach on the ironing board the strip edges using a pin. Gently pull the biases manufacturing tool, which are using the fabric strip.