This scientific glass bong by Genie Glass not only comes in a sleek, stemless design, it also features two white flat discs diffuser placed evenly throughout the body of the tube. Each of the flat disc 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 18 mm female joint comes with an 18 mm thick bowl with an integrated screen and a clear glass handle. The handle not just handy for easy lifting without burning your fingers, it also prevents the bowl from accidentally rolling down the table.