Features: Works with Series Printers: Designed for seamless integration with K1C and extreme 3D printers, offering a direct replacement heating component (consistent units manufactured before 2025). High Temperature All Metal Extruder: Supports temperatures up to 300℃, ideal for printing reinforced polymers like PA , PET , and polycarbonate with consistent output. tool less Nozzle Replacement: Allows nozzle changes without disassembly, minimizing downtime during substance conversions for uninterrupted printing. Rapid Ceramic Heating: Features a complete ceramic heating component that reaches 200℃ 300℃ in under 40 seconds, ensuring balanced thermal distribution. Robust Metal Construction: Built with alloy heat break and hardened steel nozzle to withstand abrasive materials, enhancing longevity. Specifications: Product type; K1C - ceramic hot end set Product substance: ABS+metal Product color: black Product size: as shown in the picture Package Includes: 3D printer accessoriesx1 note: Pay attention to the storage methods.