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)