MaterialPVC/PET/PAPER/anti-metal/3M adhesiveSizeRound: 25mm/ φ30mm/ φ40mm etcSquare: 18x18mm/25x25mm/35x35mm/45x45mm/50x50mm etcRectangle: 40x35mm,40x25mm,15x30mm,30x50mm18x56mm,85x54 mm etc CustomizedChip options13.56MHZ: Ntag213/216 ,Ultralight EV1,F08,1K S50 ,4K S70 , Desfie 2K/4K/8K,Icode sli/x/s ,Plus S/X SLE66R01,FElica-LiTE-S,Topaz512,TI2048 , Ving card etc 125KHZ: TK4100,EM4200,T5577, ...