Feature: 1. [Compatible Models] This heating block kit is compatible with for K1, K1 Maximum, K1C 3D printers, offering versatility and convenience for various printing needs. 2. [Upgraded Integrated Design] Featuring an upgraded all metal integrated design for the nozzle insulation plate, installation is fast and replacement is easy, eliminating concerns about leakage. 3. [Supports High Speed Printing] With a 30% larger overall hot melting section, including a 28.5mm long large hot melting section and a high flow rate of 32mm³/s, this kit allows for printing speeds of up to 600mm/s. 4. [Powerful Ceramic Heating Ring] Equipped with 60W 320℃ surround ceramic heating ring, this kit enhances heating efficiency, heat uniformity, and rapid heat transfer, reaching 200℃ in just 40 seconds. 5. [Efficient Cooling Upgrade] The cooling section features a split design that reduces heat transfer, while the red copper heatsink enhances cooling efficiency. Supports filaments such as PLA, ABS, PETG, TPU, PP, PC, PLA CF, PA CF, and PET CF. Specification: Item Type: Hotend Heating Block Kit Material: Metal Support Filament Diameter: 1.75+0.05mm Compatible Filaments: PLA, ABS, PETC, TPU, PP, PC, PLA CF, PA CF, PET CF, etc. Ceramic Heating Power: 60W Compatible Models: for K1, for K1 Maximum, for K1C High Temperature Resistance: Up to 320℃ High Flow Printing: Supported. Package List: 1 x Hotend Heating Block Kit 1 x Wrench 3 x Small Wrench 1 x Accessory