TwoGorgeous rings or bubbles stacked on top of each other makes this pipe very unique. Made of high quality borosilicate glass and triple blown means it is very thick. Glass is very shiny. Pipe is silver fumed throughout and that means this pipe will change colors the more you smoke it. This pipe will grow with you and evolve over time to look completely different! Clean the pipe to make it look like when you first got it and start the color changing process all over again!. This glass item is individually hand-blown and beautifully handcrafted.