... inside. 2. Available with hico magnetic strip, encoding, laser, etc RFID card is different chip inside, for example UHF, proximity EM4102, T5567 ... . It is available with hico magnetic strip, encoding, laser, etcShapes: ISO card, disk tag, wristband, keychain/keyfob, laundry tag, metal tagTagIC: R ... : 53.98±0.05mmthickness 0.8±0.04mmmaterial :PVC.PET ISO standard EM4100 cards