Contactless RFID Wristbands Waterproof of IP 67, IP68; 125KHz:EM4200, EM4305,TK4100,T5577 13.56MHz:Mifare1 S50, Mifare1 S70 Material: Silicon Size 1: 74mm Size2: 65mmPrintable with silk screen, not available with personalization numbering IC available at 125KHz nominalTK4100, EM4100, EM4102, EM4450,Hiatg1, Hitag2, HitagS256, HitagS2048, ATA5567IC available at 13.56MHz nominalMifare1 S50, Mifare1 ...