Hotend for Prusa I3 MK4/XL Print Head Heater Block 04mm Nozzle 24V 40W Heating Thermistor Silicone Cover Extruder Kit Package Included: 1 set hotend kit (heater cartridge, thermistor, heat block,throat tube, nozzle, silicone cover) + 2PK brass nozzles._x000D_ Tungsten Carbide Coated: It has a strong adsorption capacity, effectively preventing molten plastic from sticking to the nozzle._x000D_ Premium Nozzle Quality: MK6 hardened nozzles are made of high-quality . The nozzle is not easy to stick filament with high hardness, resistant to wear and tear._x000D_ Simple Installation: Remove the old hot end and install the new hotend to start. (Heating tube, thermistor, nozzle etc are pre-installed)_x000D_ Filament material: The print head for Prusa I3 MK4 works with 1.75 mm PLA/ABS/PETG/TPU/Wood filament._x000D_ _x000D_ Notice:This hotend kit replacement is compatible with for Prusa I3 MK4 FDM 3D printer._x000D_ Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you!_x000D_ Colour:As Shown_x000D_ Material:aluminum_x000D_ _x000D_ Package Contents:_x000D_ 1 * hotend kit_x000D_ _x000D_ Only the above package content, other products are not included._x000D_ 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. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_