Question: are ball mason jars smell proof?
Answer: MASON JAR Mini Mason Jar 4 Ounce - Marijuana Pot Leaf Container and Smell Proof Canning Jar (2) PERFECT FOR HOME & TRAVEL - Whether You Want To Keep Organized Herbs Fresh At Home Or Throw In A Backpack and Hit The Road. This Sleek Discreet Smell Proof Container Is A Must Have. Also Makes A Great Gift!