Description: The design of chamfering is adopted to avoid irregularities and plugs. The product has a smooth and shiny appearance with lettering, and the inner wall is smooth. Clever use of the inverted design. It can reducing resistance, tight fitting of the joint, preventing print head leakage. It is not only reduce the resistance, avoid blocking of the filament on the rounded chamfer, but also provide a long service life, make out of filament more smoother. Specification: Color: as picture show. Size: as picture show. Material: brass. Package included: 1x printer nozzle.