Universal rule for patchworkpermet: Check the 0.75 cm sewing supplement with the PatchworkControlling the 0.25 cm sewing supplement with the 0.25 cm seam for the implementation of a closure To zipper the hem line for right -handers and left -handers thick and resistant material guaranteeing a safe traced of the rotary knife. Precise marking by computerized laser impression on the back of the rule. Employment for supplies, bias, equilateral triangle, hexagons, etc.