1、High temperature resistant magnets and ball bearings, excellent and stable performance. 2、4 pole design, high efficiency to enhance comprehensive ability of RC car, long service life. 3、High strength aluminum alloy anodized shell, durable and sturdy, as well as anti-corrosion. 4、Low heat production, strong overload protection, safety and smooth to use. 5、Special designed for 1/10 RC car boat model. Features: High temperature resistant magnets and ball bearings, excellent and stable performance. 4 pole design, high efficiency to enhance comprehensive ability of RC car, long service life. High strength aluminum alloy anodized shell, durable and sturdy, as well as anti-corrosion. Low heat production, strong overload protection, safety and smooth to use. Special designed for 1/10 RC car boat model. Specification: Condition: 100% Brand New Item Type: RC Accessory Material: Aluminum Alloy KV value: 4000 KV Voltage: 6 V - 11.1 V Suitable for 1/10 car model and ship model Outside diameter Size: 36 * 50mm / 1.4 * 2in The diameter of axle: 3.175mm / 0.1in Axle length: 13.5mm / 0.5in Package List: 1 * Brushless Motor