This is an Indoor/Outdoor Spalding basketball that has been personally signed by Hall of Famer Julius ""DR. J"" Erving. Erving is regarded as being one of the greatest ambassadors to the game of basketball. He played in the ABA from 1971-1976 and in the NBA from 1976-1987. We won a championship in both leagues, was MVP of the ABA three times and once MVP of the NBA. This item includes a certificate of authenticity from DenverAutographs.com and James Spence Authentication (JSA).