Item Type: C2830 Brushless Motor Weight: 88g / 3.1oz Main Material: Aluminium Alloy, Copper Colour: Black, Red Shaft Length: 12mm/0.5in Shaft Diameter: 3mm/0.1in Connector: 3.5mm gold coloured male head1Waterproof Process: The motor adopts waterproof design and related waterproof process, which has certain anti rust function and normal operation in the rain. 2High Torque and High Temperature Resistance: 14 stage, 12 slot high torque motor design with high purity copper coils to maximize performance and withstand temperatures of 180?200 degrees. 3Fine Process: CNC machine tool processing billet, 6061 T6 aluminium heat sink, secondary oxidation treatment, high end fine appearance. 4Prime Bearings: Super durable imported sealed bearings, low friction, low noise, high accuracy and long lasting use. 5Imported Ultra Thin Silicon Steel Sheet: Excellent performance, high magnetic conductivity, high silicon content, good insulation and heat resistance. 1 x Motor 4 x Motor Mount Accessories 8 x Screws 1 x Instruction Manual