Features 1、The metal gear can withstand higher loads, which can ensure the normal operation of the servo. 2、High efficiency, low noise and low power consumption during operation, high performance. 3、It is made of high‑quality plastic and semi‑aluminum frame, and has undergone precise processing to ensure durability. 4、High precise and accuracy, reliable to use, durable, easy to install and disassemble. 5、There are 5 different servo arms in the package to meet your different needs. Item Type: 24KG Servo Material: Plastic + Aluminum Color: Black Red Size: Approx. 40x38.6x20mm/1.6x1.5x0.8in Weight: Approx. 85.0g/3.0oz Model: S2400BL Locked-Rotor Torque: ≥25.0kgf.cm at 7.4V Working Voltage: 6.0~7.4V DC No-Load Speed: 0.12 seconds at 7.4V at 60° Operating Angle: 180°±10° (500~2500μs) Mechanical Limit: 210° Operating Angle: CCW (1000→2000μs) Applicable Motor Type: Brushless Motor Fitment: Fit for 1/8 RC Car Fit for Model Boat Fit for Model Robot Installation Notes: 1. Install the servo to the base first, without installing the servo arm or servo protection. Only fix the servo to frame. Then connect the servo to the receiver, Generally, the three lines for CH1/ST port are divided into bottom line, VCC, signal/PWN. 2. After the servo is fixed, turn on the remote control and turn on the ESC after setting it, and then the servo will stop at a fixed position 3. Without turning off the remote control and the servo, install the servo protection or the servo arm to the servo output gear Package List 1 x 24KG Servo 5 x Servo Arm 5 x Screw 8 x Accessory 1 x Manual