The robotic arm is in compact structure, very well designed and manufactured, which can move front and back, up and down and left and right steadily. Features: Servos Included: equipped with 6pcs MG996 analog servos controller for the joint and claw. 10kg.cm Large Torque Servo: operate smooth to control the mechanical arm more accurate and flexible. 6 DOF Structural Designed: allows the robotic arm to move smoothly at the front and back, up and down and left and right. Compact & High quality: all the support parts are made of 2mm thick aluminum plate, which effectively improves the stability of the manipulator itself. Forearm Mechanical Structure: the simplified structure reduce the weight of the forearm, easier to install and more flexible to control. Imported Cup Bearing Steering Joints: not only can make the steering more flexible, but also can make the servo gear steering in the same center of the circle. Rounded Disc Form Chassis: allows the robotic arm turning left and right more flexibly and smoothly. Specifications: Type: Without Servos / With Servos (Optional) Material: Aluminum Package Weight: 619g / 21.83oz, 979g / 34.54oz Package Size: 31 * 22 * 7.5cm / 12.20 * 8.66 * 2.95in Servos Specification: Servos: MG996 analog servo Quantity: 6pcs Working Voltage: 4.8~7.2V No-load Current: 100mA Torque: 10kg.cm Limit Angle: 180 Wire Length: 30cm Gear Material: Metal Dead-time: 5uS Packing List:[1 Box of Robotic Arm DIY Kit (With Servos)] 6 * Servos 6 * Servo Arm Horn 4 * Multifunctional Bracket 3 * Breadboard Jumper Wires 3 * Small U-shaped Bracket 2 * Large U-shaped Bracket 2 * L-shaped Bracket 1 * Robotic Arm 1 * Cable Wrap 1 * Bundle of Cable Ties 1 * Metal Rod 1 * L-shaped Hex Key Other Necessary Accessories (Nuts, Screws, etc.)