... red, black, etc. 4.Fast delivery Waterproof silicon wristband with high quality from China IC Options of RFID Wristband1) LF ( ... diameter--65mm; band width—20mm3) Color: blue, red, black, white, yellow, grey, green, pink, etc.Features of RFID Wristband1) ... and use, waterproof, moisture proof, shockproof, and resistant to high temperature2) Working temperature: -50°C~240°CPrinting OptionsLogo printing, ...