Elevate the performance and aesthetics of your RC boat with our 4-Blade Metal Propellers. Designed for a wide range of marine applications, including heavy boats, tug boats, fishing bait boats, wood boats, and more, these propellers are the perfect upgrade for enthusiasts seeking durability and efficiency.Key Features: Premium Material: Crafted from high-quality Zinc Alloy and finished with a gold plate, these propellers combine strength with a sleek appearance. Versatile Compatibility: Whether you're outfitting an RC boat, marine cruiser, ROV, or other vessel, these propellers are designed to enhance your model's performance. Precision Engineering: Made through casting, these propellers ensure a robust and durable solution for your boating adventures. Compatible with propeller drive dogs (not included). Size Options & Rotation: Choose between two sizes, D55mm and D60mm, with a consistent hub height of 17mm. Available in both Right-Hand (RH) and Left-Hand (LH) rotation to match your specific needs. Shaft Compatibility: With a shaft hole diameter of 4.15mm, these propellers are tailored to fit a 4mm diameter drive shaft, ensuring a secure and efficient connection.Tips: Right-Hand (RH) Propeller: Rotates clockwise from the stern view in forward gear for standard propulsion. Left-Hand (LH) Propeller: Rotates counter-clockwise from the stern view in forward gear, ideal for dual-prop setups or specific navigational requirements.Package Contents: 1 x 4-Blade Metal Propeller for 4mm Shaft (Please select your desired size and rotation type)Transform your RC boat with our Zinc Alloy 4-Blade Metal Propellers, designed for performance, durability, and a sleek appearance. Whether upgrading or replacing, these propellers offer a significant enhancement to your vessel's operational efficiency and style.