Product Description Servo, digital high-torque (ball bearing), waterproof Use Traxxas stock and hop-up replacement parts to get the most out of your Traxxas RTR vehicles. This product is made from high quality materials and designed for long-lasting performance. This is replacement hardware for use on Traxxas vehicles; consult your user's manual for exact parts listings. From the Manufacturer This is a stock Traxxas Waterproof Digital Ball Bearing Servo. It features a Futaba J style connector. This ball bearing servo will provide accurate and smooth high-torque performance.