... Products Name: anti-stress ball 1.Outer fiber : PVC,PU 2.Filling: Plastic beans,polyester fiber 3.Logo : Can be printed Production Name: anti stress ball1. ... of balls such as hacky sack footbag,juggling balls, anti stress ball, water bouncer ball,Pu foam ball,knitted hacky sack, chinese hacky sack and so on ... about us from our website www.hackysack.net.cn anti stress ball,anti-stress ball,stress ball