Stundenglass Set Up 

How do you know?

​@@chulaitran772 the emblem is wrong there isnt a g in the actual stundenglass emblem

Thats the one from aliexpress. About 130€

yes.... not a fan

I just went out and bought a 14mm bowl

luckily i had a bowl from a bong that worked

Doesn't use batteries, it uses physics. When you flip the water it drains into the bottom chamber and as that water is emptied instead of it filling with air it gets filled with smoke. When you flip it again that smoke gets pushed out of the month piece

Like the metal tube two parts got stuck together