This bong is at the height of practical and effective glass! Durable construction, double percolation power, and a sleek design make using the Supreme Straight Tube an overall wonderful smoking experience. 4mm clear glass is accented by attractive pops of color along the perc, base, joint, and mouthpiece, as well as two Diamond Glass Gold logos. The narrow bottom chamber holds a diffused downstem that kicks off your hits with a nice amount of percolation before it reaches the tree perc. That pre-filtered smoke gets another treatment of thorough filtration, delivering pleasantly cool rips every time. Whether you’re new to smoking with glass or have been at it for years, this piece is a reliable daily driver for anyone.