Relax your waist, shoulders, back, hips, thighs, calves, and soles of your feet. Ball (peanut type): 1. For a tension that cannot be removed with regular massage such as neck, shoulders, back, back, sole, sole, calf, and thighs. 2. The round carp is just like a tennis ball to fit the targeted area and is the perfect size and firmness to loosen the tightness of your curp and gently loosen your tightness. 3. Refresh your tired areas with long hours of computer work or desk work.