Specifications: Dimension: 40.8 * 20.1 * 38mm Connector Wire Length: 300mm Weight: 56g Maximum angle: 180° Operating Speed: 0.16sec / 60 degrees (6V) Operating Speed: 0.14sec / 60 degrees (7.2V) Torsional moment: 12kg.cm.at(6V) 13kg.cm.at(7.2V) Temperature range: 0-55℃ Operating Voltage: 6-7.2V Features: Gear Type: All Metal Gears Power Supply: Through External Adapter The speed, tension and accuracy all increase. Great for robotic arm, boat, smart car, helicopter and airplane Important Notes: 1. For engine powered airplane and boats, rubber must be used to reduce vibration. 2. Please choose correct model for your application. 3. Torque over-loaded will damage the servo's mechanism. 4. Keep the servo clean and away from dust, corrosive gas and humid air. Package Including 4 * MG996R Mi.