Features: Brand new and high quality The magnetic block on the hot-end heating part can quickly and accurately fix the nozzle in the installation position, which makes the disassembly and installation of the nozzle simple and convenient. Before replacement, please ensure that the hot end have cooled down and avoid touch the heating block at the bottom of the hot end to prevent burn. The 0.2mm nozzle can gives the Daang model smaller layer and fine vertical printing surfaces, so that the printing model have high accuracy. 0.4mm nozzle is standard nozzle diameter of modern 3D printers, which effectively balances the printing quality and printing speed. Do not use the 0.2mm nozzle to print consumables containing glass fiber, metal or other inorganic particles, as this may cause blockage. After many tests, PETG consumables can be printed with 0.4mm hardened steel nozzle, which is not easy to block and have good printing quality. It is recommended to use 0.6mm hardened steel nozzle to print other consumables containing glass fiber to minimize the risk of blockage and wear. Specifications: Material:Metal Size:Approx. 21x16.5x49.4mm/0.82x0.65x1.94inch Nozzle diameter: 0.2mm/0.4mm/0.6mm/0.8mm Installation mode: magnetic installation Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item. Package includes: 1 Set Hotend Nozzle