During the journey to Mars, astronauts usually experience muscle and bone deterioration in a weightless environment. This is an innovative universal (pun intended) building block system. This system can be used to create splints (for articulating joints) or as a supportive device for rehabilitation of weakening muscles and bones. The "Connector Erector" block system can be customized according to the astronaut's dimensions. Medical devices could be built by snapping the units of the "Connector Erector" together horizontally and/or vertically. This would be extremely helpful on the journey and the exploration of Mars.