... quality ISO15693 RFID library tag Material: Paper, PET, etcSize: 35*35mm, 50*50mm, etc , or customized sizesChip: NXP ultralight, NXP S50 ... nameRFID tagMaterial: Paper, PET, PVC, anti-metal layerSize:35*35mm or to be customizedThickness0.4-0.5mm or 0.8-1mm, or ...