Specification:1.Material:PVC/PET/PC/PETG, or transparent PVC material2.Layout:We can offer different layout such as 5*5, 2*5, 3*8, 6*7, 3*7, 4*4, etc. According to customer's requirement. 3.Thickness: 0.4~0.55mm, Depend on customer's requirement, Min. Thickness is 0.32mm for Ultra-thin Smart Card.4.Antenna: Copper, Aluminum, Ultrasonic 5.Popular Shape of Antenna: LF/125KHz : Round or RectangleHF/ ...