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 thru 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 & Stem, Metal screen fitted into bowl to hold your material and rubber and 1 pc of extra grommet. Must own classic Metallic Grinder. its diamond shaped teeth are optimally & evenly distributed for easy and efficient grinding. Herb grinder/crusher is an invaluable & indispensable tool to own when it comes to grinding your spices, herbs, and etc.