An old standard, reimagined with new technology and functions for today's progressive sewist! Increased to 4-1/8 inch wide x 18 inch, a complete half yard, with additional yardage markings at 1/8, 1/4, and 3/8 yards. Measurement markings in 1/16 inch increments, with metric equivalent. Bias angles for marking bias lines. Parallel slots at 1/4 inch, 1/2 inch and 5/8 inch increments for tracing wheel and pencil markings. Centering markings for design placement. Measure and mark exact locations for buttonholes, buttons, pleats, tucks, decorative stitch lines and more. Optical grade laser cut 1/8 inch acrylic with patented 2-color double-site line printing on ruler underside. * Made of: Plastic * Use: Measuring