This Four Twenty Nautilus Bong is an excellent piece of glass art that will offer you a super-duper hit! It is made of a robust heat resistant borosilicate glass, formed in the shape of a Nautilus tube. You place your herbs onto the black bowl. An inline slit diffuser filters your smoke in the main chamber. In addition, some black ice noches will hold a few cubes for cooling your smoke. Three succesive rings are designed in the middle of the tube for decorating your bubbler. With the Four Twenty logo featuring at the top of the tube, the whole set-up ends up in a slide mouthpiece ring.