Description Notes ： The picture may not reflect the actual color of the item because of different photographing light, angle and display monitor Durable SIM Big Turn To Small Card Converter Adapter Transparent Open Card Device Universal for Phones Sim Cards . MOBILE PHONE BIG CARD DEVICES: Suitable for open card or activate the new phone card, send text messages, QQ, games, such as voting, SP consumption by self and etc. NOTE: Donot need to take off the small SIM card from big card, it is to ensure the integrity of the big card and improve the working efficiency. METHOD OF USE: You only need to put the small card of card open device inserted into the phone card slot, put the mobile phone big card directly inserted into the card open devices (NOTE: the positive and negative marked can not be identified on the card open device) , use mobile phones to send text messages and calling . Package Included: - 1 x Open Card Device