Features: Suitable for efficient heat dissipation to extend motor life and ensure print stability and precisions. Equipped with a built in fan for rapid cooling, easy installation, and strong compatibility. Suitable for 3D printing enthusiasts, professional manufacturers, and engineers seeks high performances equipment. Perfect for 3D printing tasks, complex model creation, and operations in high temperatures environment. Crafted from metal, this accessory is essential component for maintaining optimal performances in demanding 3D printing projects. Specifications: Component:Metal Size:Approx.30mm/1.18inch Package Includes: 1Pc Cooling Fan note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.