For Creality K1/K1 Max Ceramic Heating Block Hotend Kit 300C High Temperature High Flow with Titanium Throat 3D Printer Parts Product Description: Heat Resistance - All-metal Heat Break High-temperature Resistance Up to 300C, and the nozzle is made of copper alloy and hardened steel to ensure hardness while supporting high-flow printing. High-speed Printing - Creality K1 MAX Ceramic Heating Block Hotend Kit with 32mm/s High Flow, the overall hot melt section is enlarged and the length is up to 285mm, supporting 600mm/s high-speed printing. High Thermal Conductivity - 360 surround ceramic heater improves heating efficiency, more uniform heating, and faster heat transfer. Nozzle inner wall roughness Ra0.4 for smoother feeding and superior printing results. With a powerful 60W ceramic heating ring ensures faster heat transfer. Better Compatibility - Works with most FDM printing filaments such as PLA, ABS, PETG, TPU, PA, PC, PLA-CF, PA-CF, and PET-CF. etc. About the shipping way (please choose your best shipping way when you placed the order) 1. Cainiao Super Economy Global -----this is the cheapest shipping way, but also has the long shipping time normally about 30-60days 2.SaverShipping-------------this is the most compatiive shipping way, shipping time about 20-35days 3. Standard Shipping--------this is the most safe and fast shipping way, shipping time about 15-25days