... black, etc. 4.Fast delivery Waterproof silicon wristband with high quality from China IC Options of RFID Wristband1) LF (125KHz): ... Material: silicone2) Dimensions: watch dial—oval; inside diameter--65mm; band width—20mm3) Color: blue, red, black, white, yellow, grey ... , pink, etc.Features of RFID Wristband1) Close-type watchband, elastic, easy to wear and use, waterproof, moisture proof, shockproof, ...