Mini Canister 40 Gram Silica Gel Proudly made in the United States Protects up to 3 cubic feet of enclosed space Drinks up moisture from within enclosed storage spaces, safes, etc. Prevents condensation, stops rust, mildew, corrosion, spoilage Once saturated, built-in indicator turns from blue to pink signalling need to reactivate unit Reactivates easily in oven for lifetime protection