... remark part-lines on the card, then you hold a scissor to cut the card, you need to be careful ... to avoid broken the sim card. Many people had a tryt, it's high risk to broken the sim ... just need to input the sim card in correct way. we have guarantee for that, if there is any broken happened ... (follow the correct cut way), we will compensate twice for that!Advantage:Don’t need buy extra nano sim card ...