1、EXTENSIVE COMPATIBILITY: These nozzles are compatible with DIY models such as for CR 6 SE, for Ender 6, for Ender 5 series, for Ender 3 S1, V2, Pro, for CR 10 series, for Sermon series, for MK8 2、SMOOTH INNER WALL WITHOUT BLOCKED: Ra<0.4 roughness, the inner wall of the nozzle is smooth without burrs, which make the feeding and filament discharge smoother during the printing process, greatly reducing the probability of blockage 3、HIGH HARDNESS AND MORE WEAR RESISTANT: The nozzle is made of excellent hardened steel material, Mohs hardness up to 7.8, 450℃ high temperature resistant, more wear resistant. Possess longer service life in high temperature printing environments 4、SUITABLE FOR PRINTING ABRASIVE MATERIALS: The nozzle is not only compatible with all common printing materials such as PLA, ABS, PETG, TPE, TPU, PC, etc., but also compatible with composite filaments with carbon fiber, glass fiber, steel, wood, boron carbon, tungsten, photosensitive fragments, etc. 5、MULTIPLE NOZZLE SIZES: This kit come with 0.2mm, 0.4mm, 0.6mm, and 0.8mm nozzle sizes, allowing you to choose the most suitable option for different printing needs Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-Dadangjia