Phone Nano / Micro Sim Card Cutter 3 In 1 The kit include: 1pcs SIM cutter 3pcs* reduction card, 1pcs*check card pin Function: Normal Micro SIM Card to iphone4 4S Nano SIM Card Normal Micro SIM Card to iphone5 Nano SIM CardMicro Nano SIM Card Iphone4 4S Nano SIM Card to iphone5 Nano SIM Card Tips of use: When cut the SIM card,it need to fully inserted into the correct slotdirectly.Attention, must be fully inserted into it in place, then both hands cutcard "quick hard" close, cut cards to complete, please note that "fast hard ",so cut out the card edge neat. NOTE: When cut card must be decisive - "fast", "ruthless", do not hesitate, if the force is light, slow, and will make the SIM card first pressure deformation, rather than cut. So be sure to pay attention to this point. Do not pressure cut card on the table, so that SIM cards are easily deviation bit, or cut card reader is easy to slide on the table, so that force is not in place to.