Feature: 1. 360° Circular Cooling Flow, Rapid Cooling: The carefully designed fan duct generates a tornado-liked air flow to eliminate all cooling blind spots and maximize the flow cooling efficiency. 2. Smooth Extrusion without Clogging: The eye of the tornado flow creates a high-speed flow free-zone to reduce the cooling flow directly cooling upon the nozzle, avoiding any low-temperature nozzle clogging. 3. Lightweight Fan Duct, Better Print Surface: Lighter fan duct weight reduces 3D printing resonance during hotend acceleration, also providing more lifespan to your 3D printer structure. 4. High Strength Material: The fan duct is made by Multi-Jet Fusion technology with PA12, featuring a smooth surface, lightweight, high strength, and high temperature resistance. 5. Better Overhang Printing Quality: Under the same settings, the nautilus fan duct can facilitate your prints to achieve better overhang structures than the original fan duct, reducing the use of supporting materials and printing time. 6. Less Noise You Can Hear: No cooling auxiliary fan is required to achieve high cooling efficiency, greatly reducing printing noise. To achieve the same overhang print quality as the original, new fan ducts require lesser part fan power, which will also reduce printing noise. 7. Nautilus-Honeycomb Structural Design: The fan duct is naturally designed into a spiral flow generator, forming a shell-like corridor to channel the airflow. Honeycomb structural body design brings lighter weight and Sci-fi elements. Specification: Name: Creality x BEN2C NAUTILUS FAN DUCT Package Dimension: 125x125x80 mm Net Weight: 18.5 - 20.5 g Gross (Package) Weight:140 g Melting temperature : 175°C Material: PA 12 Nylon (MJF Made) Compatible Printer Model: Creality x BEN2C NAUTILUS FAN DUCT-M: K1 Max, Package List: 1 x Natilus Fan Duct 1 x Replaceable Flow plate (spare) 2 x Screwdrivers