When you focus on getting better and not just on getting results success takes care of itself. That is why the Wilson Evolution Game Ball is the preferred basketball in high schools across the country. Every part of this ball from the unparalleled soft-feel composite cover to the composite pebbled channels provides an exceptional grip and performance for those who aren t satisfied with being satisfied. Suited for indoor use the Evolution is approved for play by the National Federation of State High School Associations (NFHS).This ball ships deflated.