Zob Bubblers are superior to any other bubblers on the market today. Their simple, yet extremely effective designs matched with excellent craftsmanship make these bubblers unparallel to anything else. They have a wide variety of percs for every smoker, so you'll find the sceintific bubbler that's right for you. 5mm. thick glass and compact size also contribute to the long list of reasons why these Zob Bubblers are awesome.