Available in a large variety of sizes, you are sure to find a square ruler to suit your needs. An absolute must for quilting blocks accurately. The translucent plastic allows you to clearly view and cut the underlying fabric. Fluorescent color allows you to work productively in low or poor lighting. Markings are digitally etched in the ruler with 1/1200th" accuracy - no warping or wearing of markings! Fibre optic plastic has a clinging effect on even the most slippery surfaces - no more need for sandpaper dots. Marked at 1/8th" top to bottom.