These pong balls can be used for beer pong, Beirut, carnival games as well as ping pong (table tennis) and many other uses. These balls come in assorted colors and are ALL brand new. A great item at an amazing price. Please note that these balls are 40mm, but are not filled with gas like a regulation ping pong ball, but perform as well as standard 40mm table tennis balls. These are great on their own, but could be even better with other costumes and accessories available in our store.