Ping-pong in Chinese

It's 乒乓, pinyin reading pīngpāng. I like how symmetric those characters are. It kind of looks like a ping-pong table, kind of. They're only used in the word 乒乓. They're a modification of the character , read bīng and meaning soldier, by removing first one and then the other bottom stroke, it's very cool.

乒乓

(wiktionary link)