Notice: This hotend kit with heater sink replacement is compatible with for 3/Combo/ Pro FDM 3D printer. Tungsten Carbide Coated: It has a strong adsorption capacity, effectively preventing molten plastic from sticking to the nozzle. Premium Nozzle Quality: MK6 hardened nozzles are made of high-quality hardened Steel. The nozzle is not easy to stick filament with high hardness, resistant to wear and tear. Simple Installation: Remove the old hot end and install the new hotend to start. (Heating tube, thermistor, nozzle etc are pre-installed) Filament material: The print for 3 works with 1.75 mm PLA/ABS/PETG/TPU/Wood filament. 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 + Hardened Steel Package Contents: 1 * 0.4MM hardened nozzle 1 * 0.4MM brass nozzle 1 * silicone cover 1 set * hotend 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.