I'm a loyal grav customer, and decided to try another american made glass company. The color and shape are great. I have to say that from a company named heavy glass, I was not impressed with thickness at this price point. Feels asian to me. I own a lot of glass, imo it's not acceptable.
First of all, 420Science,com packaged this thing to survive the USPS way better than most, what a joy it was to see all the protective steps taken to make sure this thing survived the journey, top notch! love the quality gift too! It's a great piece, just a little water, add some ice (I found a nice silicone ice strip maker at a local store that fits perfectly). I am however sad to say it has a huge **** logo ground into the glass that I hate, it would be so perfect had they not put this on, but they fumed it lightly on the bottom section but its so light, the picture on the site is yellowish, this has none and is almost clear, I almost wonder if its the right one? It seems a little thin for 5 mm until you see the joint areas and I love how they have a very small "brand" logo so you know its not a fake, you do feel the quality of the glass, its very sturdy and will likely last a lifetime if I can get over the gaudy sandblasted logo, not going to be the showpiece I thought it would be....
it hits wonderful perfect size neck is a little smaller in diameter than i am used to but i kinda enjoy it other then being a little hard to put ice in if not crushed or small cubes over all loving watching it change to a purple/blue
finally decided i needed a little bit smaller bong just for daily smoking (a 2 foot bong isn't the most practical daily driver) at first i thought the neck was a little narrow but its plenty big enough to hold ice and if you try to cash the hole bowl in one hit i recommend ice. its been nice watching it turn blue/purple.