I'm a relatively new M.M. user, and needed something to make storage and privacy more accessible. This product ticks off every box in my list. I prefer to have my flower ground already, and it fits approximately 7 grams with a little bit of room to spare. Once filled, the lid screws on, then you depress the top of the lid approximately 3-4 times to keep things sealed, and yes, smell proof. I've literally held the container under my nose and inhaled deeply, practically no smell, so now I have no problems transporting my medication if need be. The glass isn't as thick as I had imagined, but that certainly wouldn't prevent me from buying another canlock product. The camo wrap is a nice touch, providing a cool look (but the bottom is still clear so you can still see inside of the container. The addition of a humidity packet is great, and fits perfectly inside. This isn't taking up a much room in my bag as a mason jar or some kind of airtight jar, so I've still got room for other items. This thing was purpose made, and I'd say it's absolutely worth every penny. I'm glad I purchased mine.