Compatibility Notice: Specifically designed for Elegoo Neptune 4 Plus and Neptune 4 Max 3D FDM printers, this hotend kit ensures a perfect fit and seamless functionality, enhancing your printing experience with reliable performance. Comprehensive Package: The kit includes 3 complete hot end assembly, 3 hardened nozzle for durable printing, 3 brass nozzle for high thermal conductivity, and 3 silicone cover to protect against heat, providing a full suite of upgrades for your 3D printer. Easy Installation: Featuring a plug-and-play design, this hotend kit can be easily installed by removing the old sprite extruder and replacing it with the one. Pre-installed 3D accessories make this process straightforward and hassle-free. Versatile Filament Compatibility: Engineered to work flawlessly with 1.75 mm PLA, ABS, PETG, TPU, and Wood filaments, this print head allows for a wide range of printing materials, making it ideal for various printing projects and needs. Enhanced Heat Management: The hotend features a seamless connection between the nozzle and heat break, which accelerates heat dissipation from the nozzle and improves insulation at the heat break, effectively reducing the risk of nozzle blockage and ensuring consistent printing quality. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:As Shown Material:Metal Package Contents: 3 x Print Head Extruder Hot End Kit 3 x Hardness Nozzle 3 x Brass Nozzle 3 x Silicone Cover