Features: Experience high speed performances with the remote control Helicopter coreless Motor, featured strong magnetic and large torque coreless motors for great power in your model aircraft. The efficient 7MM diameter motors operate at a voltages of 3.7V and reach speeds up to 45000RPM, ensuring low noise and longlasting durability for your remote controlled project. Great for Remote control enthusiasts, model Drones builders, and professional model engineers searching precise power solution for their miniature aircraft and robotics project. Perfectly for small drones, remote controlled airplanes, and robots, these motors deliver great performances in any precise powered device. Enhancing your modeling experience with this comprehensive set designs for easy installation and superior propulsions. Specifications: Component: Metal Suitable for: Remote Control Aircraft Product Dimension: approx. 0.7x1.6cm/0.27x0.63inch, wire length 9cm/3.54inch Power: 3.7V Maximumed Torque Speed: 28000-45000RPM Package Includes: 1Set Motors for Model Aircraft (2pieces) note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.