Material: MetalColor: Brass ColorDiameter: 2.8cm/1.1inchHeight: 4cm/1.6inchRPM/V: KV2200Quantity: 4PCSWeight:48gKind of: Set/KitSuit: For RC Helicopter AircraftIt is very popular in retail market.Great Outrunner Brushless Motor.Accessories: Motor， Cross， The Bullet， Complete Set ScrewOur 5043 OARS， 11 v 21.1 A， 18800 turn， 10 v 19.1 A， 17600 turn (400-650 grams of level， high speed flying wing push back like A real machine configuration 3 s 15-20 c 1500-2000 mah) GWS8040HD oar， 8 v 21.5 A， 11970 turn， 7 v 17.8 A， 10950 turnPackage Content: 4 x Brushless Motor