Flasque's body are consists of flasks and beakers that are held together to form a body and tail.  three large flasks in front, this is Flasque's body, and four glass paws with graceful pointed fingers are also attached to these flasks.  and three small flasks form its tail.  Inside the flask is a mint-colored liquid (presumably his soul or blood) in which you can see the yellow eye of this monster. But! Even though Flasque made of glass, the ethereal magic let him feel emotions and so on.