GRAV® Large Gravitron® Delivers Great Flavor Each temperature setting is calibrated

Each temperature setting is calibrated and guaranteed by the temperature control sensor to keep you dialed in at your selected temperature for consistently optimal vape seshes

It's covered by Zippo's famous "it works or we fix it free" guarantee and features the distinctive

Multiple color options are available to fit a variety of personal preferences

The spoon shape gives you more capacity in the bowl and slightly cools the hits before they reach the mouthpiece

The Buoy Recycler is another great scientific piece made by Diamond Glass in the USA

GRAV® Large Gravitron® Delivers Great Flavor Each temperature setting is calibratedThe world's first all glass gravity bong got a facelift. This new and improved version 2. 0 Gravitron boasts a fivefold increase in glass thickness and upgraded platinum cured silicone grommet for a tighter seal. The 18. 8mm female ground joint now fits any 18. 8mm male bowl and the flange at the top of the neck makes lifting the bottle a breeze. The Gravitron creates big, efficient hits through gravity and pressure. Start by filling the base halfway