... 1. used in contactless card and RFID label 2. format: 2*4, 2*5, 5*5, 3*8 3. thickness: 0.45mm ... I code 2 Inlay Features: Chip type: Mifare S50/S70, MF Uitralight, MF ... Desfire, etc.Material: PVC, PETInlay Format: 2*4, 2*5, 5*5, 3*6, 3*7, 3*8,4 ... cards, magnetic cards, barcode card, PVC cards, etc.Thanks for your visit and look forward to your contact.