Parametric physical therapy tool for soft tissue manipulation

If your hands are tired rubbing your significant other's sore muscles try this physical therapy tool for soft tissue manipulation. Perfect for force progression for the professional or the amateur and able to be customized to fit your hand for grip in applying either the concave or convex surface.
This component is part of an open source lab library, by the [Michigan Tech's Open Sustainability Technology Research Group](http://www.appropedia.org/Category:MOST).

For similar see the [Open-Source Lab How to Build Your Own Hardware and Reduce Research Costs](http://www.appropedia.org/Open-source_Lab)