Features: High Thermal Conductivity & Uniform Heating: Experience improved heating efficiency with our 360° surround ceramic heater, providing more uniform heating and faster heat transfer. High Flow Support & High-Speed Printing: The enlarged hot melt section, with a length of 28.5mm, supports high-speed printing at 600mm/s. All-metal Heat Break with High Temperature Resistance: Built to withstand temperatures up to 300℃. The all-metal design comprises a nozzle made from copper alloy and hardened steel, ensuring durability and compatibility with a wide range of filaments including PLA, ABS, PETG, TPU, PA, PC, PLA-CF, PA-CF, and PET-CF. Processing Upgrade for Better Printing: Featuring a titanium alloy and copper heat break, with extremely thin wall thickness for excellent heat insulation. Enjoy smoother feeding with a nozzle inner wall roughness of Ra0.4. Compatibility: This Ceramic Heating Block Kit is perfect for both K1 and K1 Max 3D Printers. Specification: Compatible Models: K1 / K1 Max Nozzle Diameter: 0.4mm Applicable Filaments: PLA, ABS, PETG, TPU, PP, PC, PLA-CF, PA-CF, PET-CF, etc. Support Filament Diameter: 1.75±0.05mm Ceramic Heating Power: 60W Package Size: 92x27x20mm / 3.6x1x0.7in Package Weight: 24g / 0.8oz Packing List: 1 x K1 Max Ceramic Heating Block Kit