This is a Genuine FlashForge brand nozzle for FlashForge Creator 3 & Creator 3 V2 3D Printers. These smart nozzles come with a one-piece heat brake built into them along with a teflon liner, so just changing this one nozzle gets you a practically new 1 piece extrusion area.

Simply unscrew the existing nozzle & screw the new one on, easy. Please remember to always heat your hot end before removing your nozzle.