Description: 3-in-1-out design ,suitable for 3D printer,fit 1.75mm filament. Allows to feed three different 1.75mm filaments through one nozzle and provides a faster, easier and more precise method of 3D printing It allows to exactly know when and where the color changes and eliminates the problem with oozing nozzles Nozzle Diameter: 0.4mm Material: copper. Package Includes: 1PiecexExtruder Nozzle Note: This Item is only for 1 Piece Brass Nozzle,Not including the heatsinks and heatbreaks, please know it