According to the materiality, two key words are important: form and flexibility. Every component has different rules and requirements, and according to that a material is chosen after several tests. The central brain is made of wooden sheets of ECO Boards, which are 100% recycled wooden sheets. The muscle rods exists of PVC tubes due to the length and its flexibility, which is a rule for the transmission from data to form. The motion skin exists of a special sailcloth, a very lightweight material which makes the motion visible of the muscles.