TeamPack Dual Port Inflation Needles by Ridgeline Trail Sports are made to provide increased inflation rates when compared to standard needles . Their unique design includes the side port found on most standard needles PLUS a rounded hollow tip that allows increased airlow. The combination of these two ports speeds inflation of common sports balls. Use with footballs, basketballs, soccer balls, volleyballs, and virtually any sports equipment or play toys that require inflation needles. This generous 12 pack is ideal for team sports. Use one and hand the rest out to your teammates to ensure you are never without a needle again.