RFID key chain Material: silicone Size:25*35mm Hot seller Colour:blue/black/red Applications: Swimming pools, Gymnasiums, Cooling storerooms, Access control, Event ticketing, (suitable for damp environments);Airport parcel,Parcel tracking,Individual tickets in amusement park, Travel Package,Beach,Hospital,Patient identification,Delivery,Baby identification,Prison management, Guardianship management and so on Chip Available at 125Khz: TK4100,EM4102, EM4200, EM4550, T5577, Hitag 1, Hitag S, etc. Tags Available at 13.56Mhz: MF 1k, MF 4k, MF ultralight, I CODE SLI, etc. Size:25*35mm Pakaging:100pcs/polybag,1000pcs/ctn