Double matrix percolator with Strong 5MM glass. Built in down stem for a cleaner smoking experience. This bong has 2 part attachment. It allows you to remove the water chamber and carry it with you. XL water chamber allows it hold a lot of water. Large Chill Glass logo on the large water chamber. Bottom water reservoir allows this bong to hold more water. And that means more diffusion and filtration of your smoke.It has a long down stem which will help with your smoking experience. Includes 19MM matching male bowl. Made of high quality borosilicate glass and material. Very thick and heavy.