These are the Special MK8 Nozzles with reduced Diameter on Taper for Sock to Clip into.
These are standard MK8 M6x1.0mm Thread and Length, they will fit other MK8 Printers!
Compatible with 3d printers like Ender-3 / Ender 3 Pro / Ender-5/ CR-6 SE / CR-6 Max 3D printer, etc.
1 nozzle per package.