[Even Heating Design] The print head heats evenly, with a flat nozzle interior to prevent blockages and support high-speed printing. [Upgraded Structure] The throat is tightly integrated with the heating block, reducing blockages and improving printing quality. [Compatible with Kobra 3 3d Printer] This extruder kit is versatile, with a stable structure and long service life. hardened steel and ti alloy parts provide better heat dissipation and reduce material leakage. [Easy Installation] Simply remove the old hot end and install the new hotend, which comes pre-installed with heating tube, thermistor, and nozzle. [Premium Quality] With a throat made of ti alloy and a wall thickness of 0.25mm, this kit offers a smoother printing experience with an inner wall roughness of ra 0.4. Spec: Item Type: Hot End Print Head Extruder Kit Material: Hardened steel and Ti alloy Support Printing Materials: PLA, ABS, PETG, TPU, PP, PC, Nylon, PEEK, PEI, etc. Application: For Kobra 3 3D printer Package List: 1 x Extruder Kit 2 x Accessories How To Use: Take out the product for direct use