Specification1.Material: ABS2.Size: Diameter 22mm,Website:http://www.sunlanrfid.com, 30mm or customized3.Thickness: 2.8+/-0.3mm4.Frequency: 125KHz or 13.56MHz5.Color: Black, Red, Yellow, Etc.Payment: T/T, westerunio, paypalProduction Time: 7-12 working days after deposit received.Sample: free sample available, freight collect or prepaid.