This amazing 3 in 1 glass pipe by Grav Labs give you the freedom to take cool hits anywhere! The interchangeable parts allow you to put together and take apart your pipe with ease and lets you choose how and what you want to smoke. Pop the glycerin mouthpiece in the freezer for extra cool hits. Add the bubbler attachment for extra diffusion, or simply attach the one-hitter for discreet on-the-go hits. You can also utilize the nectar collector for concentrates!