This is the Great Planes ElectriFly RimFire 400 28-30-950 Brushless Outrunner Electric Motor.
Features
For Sport airplanes up to 32oz (905g) and 3D airplanes up to 20oz (565g) Designed for explosive acceleration and maximum torque Lightened aluminum can houses high torque rare earth Neodymium magnets Double shielded bearings Better cooling means 50% more power than many others Outrunners of similar size Virtually maintenance-free; no commutators or brushes to wear out Two year quality guarantee
Includes
Great Planes ElectriFly RimFire 400 28-30-950 Brushless Outrunner Electric Motor with leads and 2mm male bullet connectors, motor mount and prop adapter
Requires
Speed control for Brushless Motors such as the ElectriFly Silver Series 25 (GPMM1820)