High Thermal Conductivity Uniform Heating: 360° surround ceramic heater improves heating efficiency, more uniform heating and faster heat fer. High Flow Support High Speed Printing: The overall hot melt section is enlarged and the length is up to 28.5mm, supporting 600mm/s high-speed printing. Applicable for: This x Ceramic Heating Block Kit is suitable for K1 and K1 Max 3D Printers. Please note: the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Compatible models: K1 / K1 Max Nozzle diameter: 0.4mm Applicable filaments: PLA, ABS, PETG, TPU, PP, PC, PL A-, PA-, PET-, etc. Support Filament Diameter: 01.75+0.05mm Ceramic Heating Power: 60W Colour:Photo Color Material:Silicone Package Contents: 1 x Hot End Kit 1 x Orange Red silicone sleeve Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.