This CNC metal construction makes it more durable than plastic arm, It is also light weight so that it is convenient for you to use, which is suitable for CYS-S8218 40kg digital metal servo.<br><br><br>Features:<br>High quality and light weight<br>Metal construction makes it more durable<br>Easy to install and convenient to take<br>Suitable for CYS-S8218 40kg digital metal servo<br><br>Specifications:<br>Model name: 17T Heavy Duty Servo Horn Rocker Arm<br>Material: CNC aluminium<br>Color: Orange<br>Teeth: 17T<br>Gear hole diameter: 8.5mm<br>Item size: 68 * 16 * 8mm<br>Item weight: 10g<br><br>Package Information:<br>Package size: 7.2 * 1.8 * 1cm / 2.8 * 0.7 * 0.4in<br>Package weight: 12g / 0.4oz<br><br>Package List:<br>1 * CYS 17T Servo Horn Arm