Material: ABS/PVC + import glue (hard rubber/soft glue) The main index: Ultrasonic welding, waterproof properties is good. Applicable temperature:-25 to + 55 ° C Optional chip: ID card chip: 125 kHz EM4102/4100 TK28 TK4100 SMC4001 IC chip: Philips Mifare one series chip (accord with ISO14443A) Fudan F08 chip I CODE SLI (accord with ISO15693, ISO 18000-3)