Readytosky 25KG 180-degree Digital Gear Metal Coreless Servo Motor provides high speed, response, incredible efficiency, and low power consumption. The speed is far quicker than a regular servo, and the reaction time is likewise quite quick.Features: 25KG high torque metal gear digital servo. Extremely strong unique steel gears ensure long life and durability. Angles between 0 and 180 can be controlled, and the precision control and linearity are excellent. Useful in DIY model toys and remote control vehicles. It comes with a 25T metal servo arm.