Pokémon, known internationally as Pocket Monsters, are collected through video games and trading cards all over the world. Know you can collect and trade them as erasers too! There are three different colors of Pokeballs to choose from, including Pokeball Red, Ultra Ball Black, and Great Ball Blue. Choose your Pokeball, and inside are two of over 400 different Pokemon erasers! Yep, that’s right, two different Pokemon are included in every Pokeball, from Azuril to Zubat! - Erasers are approximately 1.5 inches (38 mm) tall.