Features: Engineered for hair dryers, this 27mm aluminum fan blade impeller delivers 100000RPM operational, ensuring durability and efficiency in demanding environments. Crafted from aluminum, the impeller features aerodynamic blade geometry, while lightweight construction minimizes mechanical stress during fast speed rotation. Ideal for electronics repair technicians, industrial equipment maintenance professionals, and enthusiasts upgrading cooling systems in laptops, servers, power devices requiring thermal management. Optimizes small scale duct systems, computer server rack where rapid heat dissipation and stable operational at extreme rotational speeds are critical. Outperforms plastic counterparts with superior heat resistance and dampening, maintaining blade integrity even during prolonged 100000RPM operational. Specifications: Component:Aluminium Size:Approx.27mm/1.06inch Package Includes: 4Pcs Aluminum Fan Blade 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.