Enhanced Hotend Cooling The Toolhead Enhanced Cooling Fan directs airflow across the hotend heatsink fins, helping maintain stable temperatures during high-temperature printing. This reduces the risk of heatsink overheating, which could otherwise lead to clogs. Additional Cooling for the Extruder Maintaining a controlled extruder temperature is crucial when printing filaments prone to heat creep. The Enhanced Cooling Fan also provides targeted airflow to the extruder, improving reliability when printing low heat-creep-tolerance materials. Installation Learn more about the replacement of Toolhead Enhanced Cooling Fan on Bambu Lab Wiki. In the Box - Toolhead Enhanced Cooling Fan *1 Compatibility H2D and H2C Product Specifications Material Metal, Plastic Packaging Size 100*135*45 mm Color Black Packaging Weight 0.058 kg