A Timer Ball is a type of Poké Ball used for catching Pokémon. For every ten turns that pass in a battle with a wild Pokémon, the chances of success for capturing the Pokémon increases. Its starting effectiveness is no better than that of a standard Poké Ball. It has a black, white, and red top with the sides of the top half being black also along with what looks like a cooking timer type handle in orange pointing toward the button. It has a better catch rate the more turns there are before using it.
Generation III and IV
(Amount of turns in battle +10) /10 (max up to 4x)