Bowl (bong)

A bowl (sometimes called a conepiece or a male piece) (no. 5 at the picture) is a component of bong, is usually a removable cup or cone shaped container, where the tobacco is packed and ignited. In rare occasions the bowl is not removable. Made of metal, glass, or ceramic, a bowl can be joined to the stem, or can just sit in the stem. The bowl forms a seal around the stem so that the only inlet of air is through the bowl. Over time burnt residue will collect on parts of the bowl.