Riding the wings of the award winning Robotic Arm Trainer, OWI has made robotic arm technology more affordable without compromising quality. With Robotic Arm Edge, command the gripper to open and close, wrist motion of 120 degrees, an extensive elbow range of 300 degrees, base rotation of 270 degrees, base motion of 180 degrees, vertical reach of 15 inches, horizontal reach of 12.6 inches, and lifting capacity of 100g. This is a pretty complicated arm to build, but we are happy with the quality and the arm. Many hackers and makers have used it with our Adafruit Motorshield. CHOKING HAZARD -- Small parts. Not for children. We only suggest this product for adults and/or kids with adult supervision.