10x Chipdeal Mini ISO Pet Cat Dog Animal Tag 134.2 kHz RFID Microchip Transponder for Identification in Syringe with Free QR tag FDX-B ISO 11784/11785: perfect for taking your pet to the EU Chip size: 1.4 x 8.5 mm wrapping material: bioglass wrapped in parylene, which grows together with the animals tissue suitable for most animals like dogs, cats, birds etc.