Hey guys, I'm relatively new to bongs and all that fancy jazz and I was just wondering if anyone cold help me with understanding joint size. I recently got the Weed Star Ghetto BItch, it's a really nice piece, but i want to order a perc or whatever, (I heard they allow for smoother hits) and I want to make sure I get the right size. The Ghetto Bitch's joint size is 18.8 mm > 14.5 mm and I have no idea what that means so I would really appreciate it if someone could give me a very easy to understand beginners guide to percs and sizing and whatnot. (a joint size for dummies, so to speak) so I can get the right size perc thing. hahaha Cheers PS, if i could get anyone could recommend a good perc thing, it would be much appreciated