Features:This product is made of high quality materials and is durable. Various sensors can be installed to complete a variety of novel interactive works through the servo controller. It is convenient to install the camera, which can realize image monitoring and image recognition and tracking. This product is a large rotation, cost-effective small pan or tilt that can perform two-degree-of-freedom motion in horizontal and vertical directions. The addition of an infrared sensor or an ultrasonic distance measuring sensor can be combined into an integrated detecting device, so that the robot can sense the surrounding obstacles, thereby realizing the obstacle avoidance function of the robot. Specifications:Condition:100 percent Brand New Material: Metal Color: As shown in the picture Package List:1 x Aluminum Alloy Multi-function Servo Bracket 1 x Aluminum Alloy Long U-shaped Bracket 1 x Imported cup bearing 5 x Flat Tail Screw 6 x Pointed Screw 5 x Nuts .