Fit For 3D Printers Models: The nozzles kit is compatible with for K1/K1 Max/ 3 V3 KE FDM 3d printers, please confirm your 3D printer model before ordering. Support High Speed Printing: The nozzles kit contains brass materials, high thermal conductivity, high thermal conductivity enables the filament to be heated evenly; at the same time, the internal volume of the nozzle is larger than ordinary nozzles to support 600mm/s high-speed printing. High Temperature and Wear Resistance: The nozzles can withstand high temperature up to 500 ℃, fast thermal conductivity, make printing more stable; process with good electrical conductivity and anti-corrosion and rust, greatly reducing the adhesion between the filament and nozzle, extrusion is smoother. High Quality 3D Printer Accessories: Nozzle inner wall roughness Ra Less than 0.4, reduces the chance of clogging; advanced heat treatment process, so that the nozzle has better corrosion resistance, can extend the service life of the nozzle. 10PCS 3D Printer Extruder Nozzles Kit: Input diameter is 1.75mm, output diameter is 0.4mm, included 5pcs 0.4mm, 1pc 0.2mm, 1pc 0.6mm, 1pc 0.8mm, 1pc 1.0mm and 1pc 1.2mm brass nozzles. Replacing the nozzles regularly will give you a better printing experience. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:As Shown Material:brass Package Contents: 10 * 3D Printer Extruder Nozzles Kit Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.