PREMIER SIM CARD BACK UP (E37).
Brushed Steel SIM copier, easy-to-use SIM card backup device. A practical item for all mobile phone users, makes a great gift or personal gadget for those reliant on their mobile phone. Whether your mobile is lost, replaced or stolen, renewing your SIM card is a simple two step process, allowing personal transfer of data from one SIM card to another or to a backup copy.
Not sure if it works with "3" sim cards