These fun double sided rulers are packed with features that make them handy for a variety of marking and measuring needs, with 1/2” notches for easy reference and 90 slots for marking right angles and corners! Features US customary measurements (1/16" increments) along edges on both sides. *Product cannot to be sold on any 3rd Party site such as Amazon, Etsy, Ebay or any other 3rd Party sites, unless approved by the manufacturer.*