... blue, red, black, etc. ISO RFID wristbands made of silicone IC Options of RFID Wristband1) LF (125KHz): EM4100,EM4200,T5577 ... use, waterproof, moisture proof, shockproof, and resistant to high temperature2) Working temperature: -50°C~240°CPrinting OptionsLogo ... printing, character printingApplications of RFID Wristband1) Swimming pools2) Multi-day children's camps3 ...