There's no material listed, but it's likely made of plastic. It will be shipped in a Takkyubin Compact box. Because of the tight fit, it won't be wrapped in bubble wrap, so please be aware of the possibility of damage during shipping. Perfect for bean-throwing or as interior decor♪ #masu (measuring box) #masu (measuring box) #mame-maki (bean-throwing) #setsubun (bean-throwing festival)