This is the small gripper. It is light and small, perfect for the small project such as robot arm. The gripper is controlled by Tower Pro Micro RC Servo Motor 9g SG90. The gripper will open when the servo motor move to 90 degree and it will be closed when the servo motor move to 180 degree. The gripper can be attached easily to other hardware by locking the predesign M3 screw hole.