These nifty cards are a break from the ordinary. We take our "compact" guides and turn them into a card that keeps on giving! With cool covers and the ability to customize, they are the perfect gift for any occasion or no occasion at all! Contains the conversions, tables and formulas used most by people at work, home or even vacationing. Multi-fold laminated guide includes: • basic weight/measurement systems • energy, liquid & dry volumes • numerical & coefficient prefixes • kitchen liquid & dry measurements • lumber sizes & geometry • common bolts & screws • Fahrenheit-to-Celsius conversion • wind chill & heat index • hurricane, wind & tornado scales • sun tanning & ultraviolet index • and more...