e/Multiplying billiard balls

Information
has gloss	eng: Multiplying billiard balls (Excelsior Ball Trick, August Roterberg, 1898) is a magic routine that is popular with both amateur and advanced conjurors but still rarely seen. As its name implies, the magician uses sleight of hand to manipulate a number of billiard balls (the balls are often smaller than actual billiard balls), giving the impression that he is making them appear and vanish at his command.
lexicalization	eng: multiplying billiard balls
instance of	c/Magic tricks

Meaning
Japanese
has gloss	jpn: 四つ玉（よつだま）とは、奇術の演目であり、ステージマジックの一つ。ビリヤードボールと呼ばれることもある。
lexicalization	jpn: 四つ玉