... , red, black, etc. 4.Fast delivery Waterproof silicon wristband with high quality from China IC Options of RFID Wristband1) LF (125KHz): EM4100,EM4200,T5577 ... ; inside diameter--65mm; band width—20mm3) Color: blue, red, black, white, yellow, grey, green, pink, etc.Features of RFID Wristband1) Close ...