The CVault's specialized Triple Latch design and silicone ring ensure an airtight seal to lock in freshness and odor. Each CVault contains a custom-made pak holder for the Boveda/Humidipak and its wide mouth design allows for easy access during curing and storage. As a checkout option, you may choose between the small (3.25" diameter x 1.75" depth) or medium (4" diameter x 2.25" depth) CVault storage container. These containers are also stackable and go well together in pairs.