Feature: 1. Exquisite workmanship and high quality materials ensures long service life and higher work efficiency. 2. High magnet and high quality sealing, with waterproof performance and perfect workmanship. 3. High strength anti‑corrosion bearing, with anti‑corrosion and anti‑rust function. 4. Special anti‑seawater corrosion coating, which can be used in high salt and ultraviolet water for a long time. 5. Metal and electronic component material manufacturing ensuring maximum durability. Specification: Condition: 100% Brand New Item Type: Underwater Thruster Motor Material: Metal and electronic component Color: Black Motor KV: 500KV Maximum Power: 312W Matching ESC: 30A Maximum Current: 13A Operating Voltage: 12V-24V Maximum Speed: 6000 RPM Diameter: Approx. 28mm / 1.1in Length: Approx. 48mm / 1.9in Waterproof Depth: 300 Meters Diameter of Axle: Approx. 3mm / 0.12in Suitable: for RC Boat. Package List: 1 x 2838Thruster Motor Note: 1. Please allow 1‑3mm error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.