The Ceramic Heater Hotend Sock for K1, K1 Max is compatible with all Creality 3D printers using the new ceramic hotends:
Creality K1
Creality K1C
Creality K1 Max
Creality Ender 3 V3 KE
Creality CR-10 SE
Creality Ender 3 V3 Core XZ
Creality Ender 3 V3 Plus Core XZ