13.56MHz NFC Elastic Fabric Bracelet Polyester Stretch Band is made of high elasticity polyester or fabric with rfid / nfc chipset .The high elasticity makes people feel more suitable and adjust size for different people ,normally 185*25mm for adult and 160*25mm for child or youth wrists , customized size for baby is available .Widely use for amusement park ,events ,music festival ticketing and cashless payment purposes ,custom artwork printing and variously rfid chips are available .