New 2.25" width by 5.5" height 250 ml, apothecary cobalt blue glass medicine bottle with black plastic screw cap with POLY CAP seal. These cobalt glass bottles are the best for storing the liquid nicotine you buy from us. Fill close to the top and throw in your freezer. The flavorless liquid nicotine will not freeze, however, you will be prolonging the life of the nicotine. Buy a 1000 ml plastic bottle of flavorless liquid nicotine and 4 of these bottles. Fill all 4 bottles and keep one available to use for DIY and freeze the 3 others. Remove one bottle from freezer as needed. No more yellow nicotine. Just boil in water for 2 minutes after use and they can safely be reused. Made in the USA.