Bottom opened water bongs, are made to ease the cleaning process, and to enable refreshing and exchanging the water without having the mouth area all wet. This glass bong is made from Pyrex glass which is absolutely health safe and almost unbreakable. Pyrex glass can assure you high temperature resistance, and thick stable device, we can guarantee the highest quality for you. Comes with a carb finger hole on the backside of the piece. This bong has ice holders inside, Just add ice for a cool smoke.