This is an item that turns regular Pokemon into legit shiny Pokemon, which was given from the freebie event on Shirogane's birthday on May 16, 2012. It has the catch rate of a normal Pokeball. Pokemon captured in this unique Pokeball were originally not tradelocked, however a tradelock was implemented for all remaining Sparkle Balls in existence on June 16th. This was not applied to Pokemon that had been captured before June 16th with the ball. Pokemon captured in a Sparkle Ball have an indicator on the Logs page of their profile that reads "Became Quite Sparkly".