Petkey Mini RFID Pet Microchips use a 30% smaller needle than standard microchips. Only 1.4X8 mm in size and can be read by all Universal Scanners. These microchips are ISO compliant for travel. These are NOT manufactured in China and are premium quality with a very sharp needle for easy injection. Microchips Require Account Activation in order to be traceable to the new pet owner. Activation can be done by the pet owner online at petkey's website, app or over the phone using the number listed on our website.