The flavors come in dropper bottles, making reloading yours vape tank an easy task too. So be sure to place your trust in DR. FOG TOBACCO SERIES because you most definitely are in for a ride with this company. The available bottle size is 50 ml. The flavors are ranging from Tobacco, Chocolate, Coffee. The nicotine concentrations that are there are at 0 mg. The PG/VG ratio is 25/75. Now available at the U.K Vaper Store.