Welcome to our store! Great replacement accessory for your old or broken propeller. Made of superior plastic material, solid and durable for long-term use. With strong thrust, the propeller can be used for electric RC underwater O-boats. Easy to install and, once installed, not easy to fall off. Compact in size and lightweight. Features: Great replacement accessory for the old or broken one. Made of superior plastic material, which is solid and durable for long-term use. With strong thrust, the propeller can be used for electric RC underwater O-boat. Easy to install and once installed, it is not easy to fall off. Compact in size and light in weight. Specification: Condition: 100% Brand New Item Type: RC Accessory Material: Plastic Color: Black Outer Diameter: Approx. 40mm / 1.57in Inner Diameter: Approx. 4mm / 0.16in Height: Approx. 17.5mm / 0.69in Weight: Approx. 4-16g Quantity: 2 Pairs Package List: 2 Pairs of 2-Blade Propellers Customers are our top priority. If you find any problems with your product after receiving it, such as damage or incorrect quantity, please contact us immediately. We strive to provide you with the best after-sales service.