In collaboration with the National Youth Sports Institute, who deeply cares about their students mental and physical health, we worked closely with NYSI to produce a foam muscle roller together with a mental kit to prepare students psychologically for training or competition. The foam muscle roller helps users to relieve muscles tension and increase muscle reflexology as well as to prevent them from muscle injuries. The foam muscle roller is made of EVA foam together with PVC/ABS for a smooth surface and a better grip.