It is a kind of plastic which looks like glass. Acrylic is durable, non fragile and light weight. Our acrylic bong comes with high gloss premium finish which is achieved through high quality polish material and skilled workmanship. And moksha bongs always comes with all the fittings to make bong ready to use. Our bong include metal bowl and stem, metal screen fitted into bowl to hold your material and rubber and 1 pc of extra grommet.What is in the box?