OWI Robotic Arm Edge | No Soldering Required | Extensive Range of Motion on All Pivot Points Command the Robotic Arm Edge with for multiple movements and functions Robotic arm gripper opens and closes Movement includes radial wrist motion of 120 Degree, an extensive elbow range of motion of 300 Degree, base rotation of 270 Degree, base motion of 180 Degree No Soldering Required OWI is the premier line of educational robotics kits