Dry Herb Vaporizer, Dynavap, HeadShop; Dynavap 2021 "M" Starter Kit £ 115.00 £ 99.00; The Dynavap "M" Starter Kit for 2021. Includes "M" Vaporiser, Triple Jet Lighter, Cedarwood Dynastash, cleaning tools and more! Read more. The DynaVap BB’s come in three different sizes – The BB3, BB6, and BB9. The number at the end represents the number of small glass beads there are in the body, with the higher numbers also being larger to accommodate them while also having more cooling in general thanks to the larger surface area for the vapor pathway.