100set fdx-b iso animal microchip rfid syringe 2.12x12mm dog chip pet injector sterile sheep microchip for pet identification access control

frequency:134.2khz type: pet id sryinge working frequency: 134.2khz dhl fedex ems ups shipment dimension: 2.12x12mm usage 1.25*7mm now is smallest sized pet microchip, widely used for tagging fish, mice, etc such very small animals; while 2x12mm is the common sized and popularly used on the market for dog, cat, horse, etc.