Customized Size 13.56MHz MF 1K chip Plastic RFID Key CardBasic Feature:RFID Key Cards : Nonstandard RFID Card , same form RFID cards but different size ; MF 1K Original or compatible chip is available , 1024 bytes memory , user memory 716 bytes ;Specification:IC : 1K ;Frequency : 13.56MHz Material : PVC ;RFID Key cards Size : 56*28 mm ;Available Die Cut Size :28*32mm ,45*30,42*26,53*30,55*27,28*28mmφ25, φ 32,φ35,φ40,φ45, φ60 ,φ70mm etc.Operating Temperature:-25°C to 100°C Available chip :(LF): EM4200, EM4305,TK4100, T5577 etc. (HF): MF 1K S50/Fudan F08/MF 4K S70/I Code Sli/ Ultralight/Ntag 215/216 etc.(UHF):Alien H3,U Code etc.Available Craft : QR Code/Serial Number Engraved etc.More details please contact us .