Compatible 3D Printers: This extruder hotend replacement is only compatible with Anycubic Kobra S1 Combo 3D printers and is not suitable for other 3D printer models. Please confirm your 3D printer model before purchasing. Easy Installation: Compact design with a modular assembly including heater block, heatbreak, and 0.4mm nozzle. No wiring or stripping required, making it simple to install on Anycubic Kobra S1 Combo 3D printers. High Quality 3D Printer Accessories: Includes assembled hotend kit components such as high-precision nozzle, throat tube, heater block, thermistor, and heater cartridge for improved print performance and higher-quality 3D printed results. Support High Speed Printing: Semi-assembled all-metal hotend ensures even heating and smooth filament flow through the nozzle, supporting high-speed printing. Designed and tested rigorously to prevent leaks and clogs, providing a reliable 3D printing experience. Warm Note: Please check that all parts are securely tightened before use, as the assembled hotend may loosen during shipping. After installation, it is recommended to re-level the print bed. Nozzle replacement is not advised. Product appearance and labeling may vary slightly between batches, but this does not affect functionality. Specification: 2 Pieces Color: As shown in images Material: Hardened steel, silicone, plastic, metal Package Contents: 2 x Hardened Steel Nozzle Hotend Note: The package includes only the items listed above. Other accessories are not included. Note: Lighting conditions and monitor settings may cause slight variations in color representation between the image and the actual item. Measurement tolerance is +/- 1-3 cm.