I recently dropped over $200 bucks on Transformer Tubes, and I'm here to tell you all about them! Let's start with a link to Transformer Tubes at Grasscity and the official Transformer Tubes page. It's worth noting that, as of writing this, Grasscity only has the Feynmann complete kit. I strongly encourage Grasscity to pick up the milking chambers, grates, and dome percolators, as they will allow people to actually enjoy the brand. So, let's start with the fact that these suckers are STRONG. Strong enough that I accidentally stuck the top of mine into the cieling fan, and had no problems whatsoever. It's been clunked around, banged into tables, knocked over, and who knows what else. This is the party bong, but for more reasons than just strength. When I swung by my friend's house with a small shoulder bag, he had no idea I had a bong with a path-length (read: height) of over 5 feet. I feel completely comfortable traveling with this, because it occupies such a small space. In fact, I was initially upset because the box my pipe arrived in was so small, I thought I only got 1/2 the shipment. These suckers pack away like nobody's business. I'm a glass man myself, so trying a polycarbonate bong was a step out of my comfort zone. Forunately, glass never touches the base thanks to a rubber grommet, reducing heat transfer. In addition, I put a few precoolers on mine. I notice the pipe tends to have a bit more 'give' or flexability, but keep in mind I'm refering to a piece that is over 3 feet tall. The taller it is, the more you can bend it, even if only slightly. I loved being able to re-arrange it. In fact, when smoking with a friend, one of us would re-arrange it while the other packed fresh bowls. Imaging smoking with friends, and each one of you gets a turn to redesign the bong. It adds an entire new level of complexity to the pipe. Here are some of my favorite elements of the set I got. For constistency's sake, all links will go to the default Transformer Tubes page because GC doesn't have most of these yet. If the links are dead, I appologize, please rely on a search engine. ('Lids' don't have to go on top, and 'milking chambers' are just tubes without any special function.) The Hyper Perc. This beast requires some lung to operate. It's not for the faint of heart. Basically, water travels up the small tube, and rests in the chamber above. It creates a crazy, churning vortex of water and smoke. I've literally never seen anything like this. PS, they talk about "adjuested downstem position," but I put two open connectors at the bottom and it fit just fine. If you don't have a special base it will probably fit just fine, I assume. If this is confusing, looking at the pictures of the items will help. http://www.youtube.com/watch?v=Md3eQyyTI7g (oops, forgot to change the bowl first) The Dome Perc. It is what it sounds like: a percolator. When I made my purchase, I bought 6 percolators off the "cosmetically imperfect" list. One of them has a tilted dome. The other 5 look amazing to me, so I'm not sure what their imperfection is. They have a horizontal percolator listed, I REALLY wanted to try it, but I'm just a poor man with 5 metaphorical kids to feed. http://www.youtube.com/watch?v=MqIV01H6QK4 The Grate Lids, which I have deemed The Great Lids. I figured these wouldn't do much. I was wrong. I was so wrong. I was steeped in wrongness, absolutely brimming over with wrongability. These are the single greatest things I have ever seen. A small layer of water rests on them thanks to surface tension, and when you pull, they percolate. NB: the slits on these are significantly smaller than the slits on the ice-tube, and rightly so. I got about 5, I should have got 15 or something. For a bonus point, try at least 3 of these right on top of each other, with either a perc or an empty milking chamber above them, followed by an ice chamber. It's just amazing. See vid in later post The Ice Chamber. It catches ice. You can use a milking chamber with a grate lid on the bottom, but the ice chamber has bigger gaps for more airflow, and won't trap water with your ice, which (probably?) melts it faster. I wanted to get extra creative, so I added a Downflow Hookah percolator using an extra downstem, a spare lid of a Hyper Perc, an open connector, a male-male connector, a female-female connector, and two U joints. It was fun, and I like busting it out to mess with people. It's also a GREAT way to make a very "tall" bong that isn't actually tall. Just know that it's a lot of parts just to add some percolation, and it will add to drag. A final bit, the Anti-Clog bowl. I love this thing. Once I save up some more money, I might just pick up a few more of these, just in case. Seriously, new favorite bowl. Overall, I am VERY pleased with my new piece. It's instantly become my #1 travelling piece because I don't have to worry about it breaking, and it's easy to transport without attracting attention. If you want the price or durability of Acryllic, or you want a piece that you can switch around, give these guys a try.