1.Mifare 1K disposable tyvek RFID wristband for exhibition events 2. factory direct price 3.13 year ... production experience Mifare 1K disposable tyvek RFID wristband for exhibition events identification wristband: 1) Made from PVC, do no harm to ... can be used as promotion gifts.3) Colors: blue, pink, white, yellow, grey, green, transparent , black , purple , red , etc.4) Size ...