Creality Official K2/K2 Pro Hotend Kit, Ceramic Heating Block Kit Quick-swap Nozzle High Flow Printing Hotend Kit 350°C High Temperature Resistance 600mm/s High-Speed for K2 Combo/K2 Pro Combo Compatible for Creality K2/ K2 Pro: This ceramic heating block kit is designed for Creality K2/ K2 Pro 3D printers, quick disassembly and easy replacement. This nozzle throat adopts an all-metal integrated design to minimize material leakage and other failures during printing. Upgrade Materials: The heat break is made of titanium alloy, which reduces heat conduction. The nozzle is composed of copper alloy and hardened steel, supporting the printing ofvarious filaments such as PLA, ABS, PETG, TPU, PP, PC, PLA-CF, PA-CF, PET-CF and etc. Precision Craftsmanship: Smooth inner walls, no blockage lnner hole roughness Ra<0.4, ensuring smooth filament feeding. Precision machining, impeccable craftsmanship No burrs at the opening, stable printing with reduced clogging. Tight fit, no leakage Tightly fit joints effectively prevent filament leakage during printing. High Thermal Conductivity: The heating block is equipped with a 360° surround ceramic heating ring, which improves heating efficiency and uniformity, ensuring the accuracy of each layer of printing, regardless of whether you are printing large or fine models. Quick-swap Nozzle: The nozzle throat adopts an integrated design, and the joints fit tightly, which effectively prevents the problem of filament leakage during the printing process, and also facilitates replacement and disassembly.