This is a game for people of all ages; it helps develop the strength of arms and legs, as well as the flexibility of the spinal column. Set includes eight 3.5" lacquered agglomerate wood balls, 1 Jack ball and complete official rules; set is made in Italy by a family-run business that has been creating the highest quality wooden toys for over 40 years; for ages 13 years and older. DESIGN & DETAILS: (8) 3.5" (90mm) agglomerate wood lacquered balls (1) 40mm Jack Ball Official Rules Convenient storage box with handle