Robotic Arm Edge - For your STEM curriculum.Robotic arm technology made more affordable without compromising quality. Features a gripper to open and close, wrist motion of 120, an extensive elbow range of 300, base rotation of 270, base motion of 180, vertical reach of 380 mm, horizontal reach of 320 mm, and lifting capacity of 100 g. Additional features include a search light design on the gripper and a safety gear audible indicator is included on all five gear boxes to prevent any potential injury or gear breakage during operation. Includes five-switch wired controller. Requires four D batteries (not included). Measures 9 in. L x 6-1/4 in. W x 15 in. H. Grade 7 and up.