Hail ruler - popular add-on item!

Metric and imperial scale Scale for colloquial hail sizes (pea, marble, etc.) Corner cut-out for easy measurement of messy corners Area to write your name and/or twitter handle for social media reporting Hole for lanyard/loop attachment to keep your ruler handy Outside scale for measuring depth of snow/hail/anything in metric and imperial Made out of high quality FR4 printed circuit board material with a black finish and gold flash coating on the ruler divisions.