ZipNFC Wristband with yellow velcro and white plastic face. These are waterproof, dust proof so can be used in most situations. They have the NFC NXP NTAG213 chip so are compatible with all NFC enabled mobile and tablet devices on the market. They are very light and so easy to wear, but also very strong. These can be reused as many times as required. They are typically used for visitors to events. But they also get used a great deal for competitors at events where they are used for identification and time keeping using NFC readers or mobiles.