Dynavap The 'B' Mechanical Vaporizer, Adjustable Airflow - Includes case & Torch

Compared to the other DynaVap vapes, the major difference with DynaVap ‘B’ is that the body is made from food-grade silicone. This makes ‘B’ more comfortable to hold when in use, and easier to maintain as it has no O-rings like the other models.