Incra Precision 3” x 2” Pocket Rule
It measures exactly the same as a standard business card or 2" by 3.5". It offers INCRA's patented marking holes at every 1/16th and 32nd from 0 to 3 inches. It also has height marking holes at every 32nds on the end. This size is the perfect size to keep in your pocket or on your desk.