silicon wristband 1.Oval dial, Waterproof 2.inside diameter--74mm OR 65mm 3.Color:blue, red, black, etc. 4.Fast delivery Waterproof silicon wristband with high quality from China IC Options of RFID Wristband1) LF (125KHz): EM4100,EM4200,T5577,Hitag 1,Hitag 2,Hitag S, etc.2) HF (13.56MHz): Mifare1 S50,Mifare1 S70,Mifare Ultralight,I-CODE2,TI2048,SRI512, etc.3) UHF (860 ~ 960MHz): UCODE GEN2,ALIEN ...