This zero-centering 6″ clear acrylic ruler has laser-etched numbers that will not rub off. Zero-centering on the bottom and standard 6″ measurements along the top means no more counting tick marks. This ruler is labeled to 1/16th of an inch.
Jennabler tip: buy 2! You can leave one white because it is awesome on dark paper! For the second one, you can add paint to color it, so it will stand out on lighter papers. Rub some acrylic or Distress Paint into the grooves, then buff away the extra paint with a dry paper towel.