The Robotic Arm Trainer teaches basic robotic sensing and locomotion principles and testing your motor skills, as you build and control the Arm. You can command this unit with it’s five-switch, wired controller with corresponding lights to grab, release, lift, lower, rotate wrist and pilot sideways 350 degrees. Only basic hand tools are required for assembly. After assembly, observe the dynamics of gear mechanisms through the transparent Arm. Five motors and five joints allow flexibility and fun! The Arm provides five Axes of motion… 1. Base Right / Left 350 degrees 2. Shoulder 120 degrees 3. Elbow 135 degrees 4. Wrist rotates CW & CCW 340 degrees 5. Gripper Open & Close 50 mm (2 in) Other specifications: Max Length Outwards = 360 mm (14.2 in) Max Height Upwards = 510 mm (20.1 in) Max Lifting Capability = 130g (4.6 oz.) Power source = Four “D” batteries (not included) The Robotic Arm Trainer has received “100 Best Children’s Products” and “10 Best Educational Products” awards from Dr. Toy. This battery controlled robot kit teaches the basic principles of robotic sensing and locomotion. Recommended for ages 10 and up.