B4 placing this order, I ordered 2 bubblers from grasscity. Emailed me 4 days later saying one isn't in stock. I was irritated and came to my normal spot, Dankstop. Not sure why I didn't in the first place. I received this super fast, it came before the one I ordered from grasscity days earlier. This has those stubs on the bottom which my other one doesn't have an I like this better. The carb is big enough for any pieces of smokable product that came through to come out of while cleaning. It seems durable but I wouldn't want to drop it. Good piece I'm happy with my purchase.