The 10 Arm Tree Perc Glass Bubbler by Liquid Sci Glass is an artfully crafted 7” inch bubbler. From the base to the mouthpiece you will notice the professional craftsmanship and attention to detail that embodies this heavy hitting bubbler. This piece features a stemless and hassle free downstem with an 18mm fixed joint. Its 60mm tube diameter and 5mm glass thickness makes the Liquid Sci 10 arm tree perc bubbler a strong and durable piece. Best of all, is the 10-arm tree perc. With 10 individual percolators reaching down your bubbler, you can guarantee that your smoke will be cooler and smoother than ever.