Description: 【Sturdy Construction】: This 64mm EDF ducted fan with brushless motor is made of a combination of composite and metal materials to ensure durability and longevity 【Product Dimensions】: The duct length is 4.5cm/1.77inch, the diameter is 6.72cm/2.65inch and the fan blade diameter is 6.4cm/2.52inch 【High Performance】: Equipped with a powerful and efficient 12 blade fan, this RC brushless motor ducted fan is an ideal choice for model enthusiasts seeking to enhance the performance of their aircraft models 【Smooth 】: The propeller model aircraft is designed to be stable, easy to dissipate heat, and maintain structural stability during use, providing reliable performance for your remote control aircraft 【Compatibility】: Ducted fan rc plane set specifically compatible for QF2822 2100, 2300, 3300 and 4500KV motors Specification: Material:Metal Size Chart: Tube Length: 4.5cm/1.77inch Tube Diameter: 6.72cm/2.65inch Leaf Diameter: 6.4cm/2.52inch Package Includes: 1 RC EDF Duct Fan Set Note: Please allow 1-3mm measuring deviation due to manual measurement. Due to the different and light effect,the actual color of the item might be slightly different from the color showed on the pictures.Thank you!