Description: Motor parameters: Built-in motor model 3550, KV500, power 600W, voltage 12-24V. Material: Nylon shell + aluminum cover motor, the weight of a single propeller is 290g. PC resin propeller, durable, corrosion-resistant, tough, long-term use will not break the propeller. Application scenarios: Underwater thrusters are widely used in more and more fields, such as ship model, underwater robots, remote control ship models, and fishing nesting boats. Freshwater Thruster: Powerful propeller design and unique underwater operation for your toy. Note: The product is a brushless propeller, which needs to be driven by an ESC, and cannot be directly connected to the battery. The battery specification is recommended to use 12V, 20A current or 24V, 30A current. It is strictly forbidden to idle without water for a long time. Touch the leaves with your hands. Size Chart: Thruster length: 130mm/5.12inch Package Includes: 1 x Underwater Thruster Note: 1. Please allow slightly error due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item. 3. Wish you a wonderful online shopping!