A collection of (23) game used Official MLB baseballs. All include MLB holograms. Several of the balls are from milestone games including: A ball used during Alex Rodriguez's chase for 600 home runs. Ball is stamped A 106; ball used to record Madison Bumgarner's 1,001st career strike out (MLB Auth. HZ530219); ball used to record a Felix Hernandez strikeout; balls from the game where Miguel Cabrera hit his 299th and 300th home runs; ball used during Stephen Strasburg's 100th career start; ball used during Mark Buehrle's 200th career win; ball used in the game where Chipper Jones passed Lou Gehrig on the all-time hits list; ball used during the game where Prince Fielder notched his 1,000th career hit.