The commercial-sized CVault® 21 Liter Humidity Controlled Storage Container features food-grade stainless steel construction thats both lightproof and 99 percent airtight. The ultimate solution to bulk curing and storage, this lightweight and durable container is specially designed with a silicone seal and industrial latches to ensure contents stay fresh. Insert humidity packets into the lid compartment to achieve premium results, and use nonpermanent marker to label, erase and re-label the lid as contents change. Includes Boveda humidity packet(s) to get started.