This waterproof, steel-geared servo is perfect for Monster Truck and most Scaler and Crawler applications where a slightly taller servo can be fitted. Precision steel gears, stump-pulling torque, and waterproof to IP67 standards (operates for up to 30 minutes in water up to 3 feet deep). Features: Center aluminum with nylon composite top and bottom case Operates directly on 7.4v without the need for an eternal BEC Precision ball bearings Specifications: Torque @6.0V - 26.0 kg/361 oz-in Torque @7.4v - 36.0 kg/500 oz-in Speed @6.0V - 0.14 sec/60 deg Speed @7.4v - 0.11 sec/60 deg Weight: 79g / 2.78oz Dimensions L x W x H mm: 40.6 x 20.7 x 42.0 (SAV-SW2210SG)