Feature: 1. Compatible Model: This hot end heatsink kit is suitable for Kobra 3 and for Kobra 3 Combo 3D printers, with strong compatibility. Suitable for PLA, ABS, PETG, TPU, wood and other 1.75mm filament material. 2. Complete and Practical: This hot end kit is equipped with nozzles, heating rod, heatsink, thermistor, heatbreak, heating block, and silicone cover. Remove the old one and install the new one to start using. 3. Tungsten Carbide Coating: The extruder hotend has a tungsten carbide coating, which has strong adsorption and effectively prevents melt plastic from adhering to the nozzle, greatly improving printing quality. 4. Secure Design: Composed of copper and ti alloy insulation parts, providing better cooling. The heatbreak is tightly integrated with the heating block, and a step restriction is added at the mating point with the heating block to reduce material leakage and detachment. 5. High Speed Printing: Special design ensures even heating of the print head, glossy and burrfree nozzle interior, reduces air resistance, prevents consumables from clogging, and supports high speed printing. Specification: Item Type: Hotend Kit Material: Aluminum Alloy, Hardened Steel, Brass Nozzle Size: 0.4mm Heating Rod: 24V 60W Thermistor: 100K Working Temperature: -40-260℃ (-40-500℉) Fit Filament Material: 1.75mm, PLA, ABS, PETG, TPU, Wood. Package List: 1 x Extruder Kit 2 x 0.4mm Hardened Nozzle 1 x Heatsink 1 x Fixing Clip