The body of the robot is a scaled down version of a typical whale shark. Its total length is 1 meter and its weight is 300 grams. It has four fins. The fins are a combination of metal struts and metal rods covered in neoprene rubber. Each fin is 10 centimeters wide, and 15 cm long and 3 cm thick at the base. The overall robot is 3 cm thick. The robot weighs about 1 kg. It is not possible to measure or weigh the fin, because they cannot be seen. The fin may bend, but it is intended to stay in place. The fin can twist and fold up, but is intended to stay in place and never unfold.
The head of the robot is a simple box structure that is 6 cm by 6 cm and 1 cm thick. The torso is a 3 cm thick box that is 7 cm by 6 cm.
The robot has large square openings for the eyes.
There is a central rectangular slot for the mouth.
There are slots at the sides of the robot for the head.
The chest of the robot is a 4 cm thick box that is 7 cm by 12 cm.
The front of the robot has a large rectangular slot with a 3 cm wide gap for the head to move forward.
The gap is only 0.6 cm at the front, so the robot cannot move forward, but it can move backward.
The chest has a small rectangular opening at the back, which is for the spine.
The abdomen of the robot is a 6 cm thick box that is 12 cm by 12 cm.
The top of the robot has a rectangular slot with a 3 cm gap for the head to move backward.
The abdomen has a small rectangular opening at the front for the back of the head.
There are two arms, each made from a piece of wood covered with neoprene rubber.
Each arm is 7 cm long and 5 cm thick. Each arm has a hollow slot for the hand to move through.
The legs of the robot are made of pieces of wood covered with neoprene rubber, 4 cm by 4 cm.
The leg is 5 cm thick.
The legs move by swinging outward like the arms.
The legs are hinged together in the middle of their length.
There is a 1.5 cm wide slot in the front of the robot, through which the front legs and the bottom chest slot are accessible.
This is the only place where the robot can move.
The head fits through the back of the neck, which is also open.
The legs move backwards and forwards to provide balance and to push the robot forward, although it can only move backward.