1.High Quality Materials: with long life Japanese NMB ball bearings, efficient Japanese Kawasaki stator steel and oxygen free pure comer wires, CNC machined aluminum case. 2.High Temperature Resistance: N40UH magnets and silicone wire leads are able to withstand high temperatures. 3.Brushless Motor: light weight, 800KV high RPM and powerful brushless motor bring you a stimulated flight. 4.Patented balance techniques:Suit for RC Fixed Wing Airplane Multicopter. Description: 1.This professional brushless motor comes with high quality. 2.Powerful motor with light weight is sure to bring you stimulated flight. 3.It is a good choice for RC drone fans. Specifications: Model: D4250 800KV Motor Color: red KV(RPM/Volt): 800KV Battery (Cell Lipo): 3-7S Suggested Prop: 11x5.5 Length: 101mm Width: 42.5mm Shaft Diameter: 8mm Package Included: 1 * Brushless Motor