2. Advantage

a. we can provide pu stress organs ,fruit ,sports ball ,transportation ,stress ball keychain

b. good quality promise

c. CE certification

d. economic and fun to relieving your stress of busy work .

e. cool for promotion

3.Tension Release 

When you squeeze a stress ball, you create tension in your muscles. Upon releasing your grip, your muscles relax. According to the Stress, Anxiety and Depression Resource Center, "this process of acute muscle tension and relaxation can flush out muscle tension and relieve stress." As you squeeze the stress ball and tense and relax your muscles, breathe deeply in order to help yourself relax fully.