Tunisian dinar
It is a criminal offence in Tunisia to import or export dinar. Every year, each citizen can convert into foreign currency up to 6,000 Tunisian dinars before departure from the country. Therefore, prices at duty-free shops are in convertible currencies such as euros, US dollars and British pounds. There are many converting ATMs in the country for tourists.
Tunisian duro
The Tunisian duro is the nickname of the small silver coin that is part of the Tunisian currency. The value of the coin is five millimes or 0.005 of a Tunisian dinar, and is the smallest denomination currently being minted (smaller 1 and 2 millime coins are no longer issued). These coins can be found on the ground since they don't have value.