You have mastered the metric system and LOVE IT. Adafruit offers a fun and exciting stickers to celebrate achievement for electronics, science and engineering. We believe everyone should be able to be rewarded for learning a useful skill, a badge is just one of the many ways to show and share. This is the I heart metric sticker for use with educators, classrooms, workshops, Maker Faires, TechShops, Hackerspaces, Makerspaces and around the world to reward beginners on their skill building journey! Perfect for laptops or the workbench. These gorgeous stickers are glossy, vinyl and made to last a lifetime. Made with printing/vinyl machines that are solar powered and using the most green friendly supplies as possible. MADE IN THE USA! The Metric System is an international decimalised system of measurement. France was first to adopt a metric system, in 1799, and a metric system is now the official system of measurement, used in almost every country in the world. The United States is the only industrialised country that has not defined a metric system as its official system of measurement, although the use of a metric system has been sanctioned for use there since 1866. Although the United Kingdom committed to officially adopting a metric system for many measurement applications, one is still not in universal use there and the customary imperial system is still in common and widespread use. Although the originators intended to devise a system that was equally accessible to all, it proved necessary to use prototype units under the custody of government or other approved authorities as standards. Until 1875, control of the prototype units of measure was maintained by the French Government when it passed to an inter-governmental organisation the Confrence gnrale des poids et mesures (CGPM). It is now hoped that the last of these prototypes can be retired by 2014. Adafruit"s stickers are manufactured in partnership with AMBRO Manufacturing...