HF 13.56MHz Silicone RFID Bracelet: 1.Free sample 2.Waterproof 3.Size:180mm,210mm,240mm 4.Custom colors ... KHz):TK4100, EM4102, EM4200, T5577 and so on.HF(13.56 MHz):FM11RF08, Mifare1 S50, Mifare1 S70,Mifare ... By air, by seaAbout samples:Sample time:3 daysSample cost:Sample are for free,but freight collect ... .3.Application:Widely used in swimming pool,refrigeration ...