The 'Mix & Match' range from Blaze Glass is a range of 'build your own' bongs which have an almost unlimited number of combinations of parts to make the perfect bong for you. This particular base in the range is great for people who love ultimate filtration. The holes in the two honeycomb percolators are tiny and break up the smoke into very, very tiny bubbles which means they do an awesome job of pulling any solid particles out of the gas. The fixed downstem has two points of attachment to the chamber to make sure it is as strong as possible and uses an 18.8mm female joint so it will take any 18.8mm male flower bowl.