This nozzle is used in the Creality CR-10 % Ender Series 3D  Printers. Machined from brass to give good thermal conductivity for high quality printing. 

Specifications:

• This nozzle is used on the CR-10 & Ender Series 3D Printers
• Available in sizes - 0.2mm / 0.3mm / 0.4mm / 0.5mm (Make Selection above)
• Designed for 1.75mm filament
• Material: Brass
• M6 Thread Diameter