Description: 【Compatible For】: The 21g Metal Gear Digital Servo is suitable for 1/12 scale MN82, MN99S, MN168, 7MN8, , and RC model cars for versatile upgrades 【Metal Gear】: The Micro Mini Servo for 1/12 Scale model features a metal gear design that withstands higher loads and significantly extends servo using time 【Waterproof Design】: The Mini Servo is made of quality abs and metal material, waterproof and sturdy, ensuring reliable performance in various weather conditions 【High Torque 】: The 21g Metal Gear Mini Servo delivers high torque (up to 4.20kgf·cm at 6.0V) and speed as quick as 0.10sec/60°, ideal for demanding RC applications 【Package Includes】: Each package includes a 21g Metal Gear Digital Servo JST2.54 with size of 2.96 cmx1.32 cmx4 cm/1.17 inchx0.52 inchx1.57 inch and a Servo Arm Specification: Material: ABS Plastic Operating V: 4.8-6.0V DC Maximum Torque: 4.8V ≥ 3.80kgf·cm; 6.0V ≥ 4.20kgf·cm No Load Speed: 4.8V ≤ 0.10 sec/60°; 6.0V ≤ 0.12 sec/60° Stall Current: 4.8V ≤ 1500mA; 6.0V ≤ 1800mA Current Consumption (No Load): 4.8V ≤ 200mA; 6.0V ≤ 210mA Maximum Operating Stroke Angle: 180° ± 2° (500-2000μs) Size Chart: 2.96 cmx1.32 cmx4 cm/1.17 inchx0.52 inchx1.57 inch Package Includes: 1 21g Metal Gear Digital Servo 1 Servo Arm Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.