Feature: Large torque - maximum torque can up to 25kg.cm (6.8V) High-precision metal gear with hard anodizing for better accuracy and longer service life CNC aluminium middle shell enhances heat dissipation and ensures the servo motor can work well Water proof rubber seals screws, made of first-grade material ensure the longevity of the products Good performance digital standard servo, which can be a common use for robots, mechanical arms, climbing cars and remote control toys Great choice for university professors and students who are interested in developing software for robot parts Tailored for RC hobbyist to provide different experience and delight Specifications: Item: DSSERVO DS3225 Digital Servo Operating voltage: 4.8 - 6.8V Operating speed ( 5.0V ): 0.15 sec/60 degree Operating speed ( 6.8V ): 0.13 sec/60 degree Stall torque ( 5.0V ): 21kg/cm Stall torque ( 6.8V ): 25kg/cm Dead band: 3?s Working frequency: 50-333Hz Connector wire: About 300mm Gear type: Metal Motor Type: DC motor Size: 40 * 20 * 40.5mm Weight: 67g Note: There could be some deviations due to manual measurement or slight color difference as the result of shooting scene Package list: 1 * DS3225 25kg Digital Servo 1 * 25T Adjustable Aluminum alloy Servo Arm