This is an important part of the AHG to bear the burden of the weight. The overall weight is 500 gram. The majority of the structure is made up of plastic (PVC). Plastic is quite soft but not easy to be flexed, which is why it is suitable to replace materials such as steel or wood, whereby both this materials are quite heavy, rusty and rough. Another important aspect of the materials to be used in designing this part is, it cannot be a conductor of electricity and also materials which cannot produce chemicals that harmful to human. The parameter of the shoulder part is 20cm x10cm x 30cm and made up of 2 plate of steel connecting Part A with Part B. Part A is shown in Fig. 2. Technically, the structure of the shoulder does not in contact with the motor located in Part B. The movement and angle of the shoulder is limited from 0 degrees to 90 degrees only as shown in Fig. 3. The AHG does not allow normal human movement, whereby the human is able to rotate the shoulder up to 360 degrees.