Gotcha! I may be getting a helix similar in size to yours for a good personal bong. I am really trying to find as much as can about the circumference of bongs, so your help is appreciated.
I did not specify enough. If you wrap a tape measure around the tube of the bong what size do you generally see? I have noticed 6" and 7" are the most standard circumference for bongs 10" through 36" tall.
If you were to put a tape measure around the tube/neck of the average sized straight bongs, what would it be? For example, I am interested in this because it appears to me that there are two average sizes of the tube for regular straight ice catching bongs. 6" and 7" using a tape measure. It...