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 a fully assembled hotend kit with high-precision nozzle, throat tube, heater block, thermistor, and heater cartridge for improved print quality and smoother filament flow. Support High Speed Printing: Features a semi-assembled all-metal hotend design that ensures even heating and smooth filament flow, 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 components are securely tightened before use, as parts may loosen during shipping. After installation, we recommend re-leveling the print bed. It is not recommended to replace the nozzle on this hotend. Note: Product appearance and labeling may vary slightly between batches, but this does not affect functionality. Specification: 2 Pieces Color: As shown in image Material: Hardened steel, silicone, plastic, metal Package Contents: 2 x Hardened Steel Nozzle Hotend Note: Only the items listed above are included. Other accessories are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowed is +/- 1-3 cm.