This quality borosilicate glass bong by Ghost Glass not only comes in a sleek, stemless design, it also features three blue flat discs diffuser placed evenly throughout the body of the tube. Each of the flat discs diffused percolators filters the smoke that passes through and breaks it up into lots of bubbles. This results in a silky smooth toke that is really easy on the lungs, yet full of flavor. The reinforced 18mm female joint comes with a 18mm male clear glass slide bowl with an integrated handle. The rim of the stable round base is colored in a matching color of mouthpiece, flat diffuser, and bowl.