DISCLAIMER: These pipes are display only! Using these for smoking could cause serious damage to your lungs and organs and some crystals can even explode when heat is added. Of course if you smoke out of these it is at your own risk, but it is advised NOT to. In the future I will buy glass pipes instead as at the time I was unaware of the damage they could do. Regardless these stunning Pipes would be beautiful for display and I will continue to sell them.