Features: Smooth andshiny lettering: The appearance is smooth andshiny, without burrs. The lettering is clear, allowing you to have a good ability to distinguish details and see quality. Smooth and smooth inner wall: The inner wall is smooth andfree of burrs, with a low viscosity coefficient and smoother wire discharge. Good thermal conductivity and high hardness: combined with the high-quality thermal conductivity of brass and the wear-resistant quality of stainless steel Provide specifications of 0.25mm, 0.4mm, 0.6mm, and 0.8mm for selection, with better performances than 3D printer nozzles on the market. Cutting Chamfer: Chamfer cutting is rounded, reducing the resistance of edges and corners to consumables, and avoiding wire discharge and blockage. Tight fitting of joints: the contact surfaces are flat, solvingthe problem of consumables leakage and effectively preventing printing head leakage Specifications: Product Name: Ender7 Chromium Zirconium Copper Brass Nozzle Product material: Chromium Zirconium Copper/Brass Optional Product size: 6x13mm Thread: M6 thread Product specification: 0.25/0.4/0.6/0.8mm Quantity: 1PC Package Includes: 1PC Printing Nozzle note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.