Really love this pipe from Grav, been using it for about a year, even bought a second one. Perfect size to make it not in your face large like the larger 6" model and yet the bowl is large enough to do the job. I like to use it with Smojo screens and then it's the perfect pipe for me. Some of the colors are less than translucent, so they can be difficult to clean completely. The green one is far better than the blue model in this respect for what it's worth. Enjoy!