OMNIGRIP Ruler - 21⁄2" x 18" (6.3 x 45.7cm)
For short strips and sashing. Right and left hand numbering and angle system. Diagonal line for triangle cuts and extra 1⁄2" on two sides for seam allowance. 30°, 45° and 60° angle markings. For use with rotary cutters and straight edge blades. Transparent, neon green double-sight lines that seem to glow on both light and dark fabrics.. Non-slip backing.