Dry-Packs Sturdy Aluminum canister easily reactivates so you can reuse over and over again!;Indicating window turns Orange to Dark Green when canister needs reactivating.;Great for Camping Gear, Cars, Shoes, Boats, Camera Cases, Tool Boxes, Gun Cabinets, Laptop Bags, Cabinets, Closets, Storage Bins;Use anywhere you need protection from moisture damage.;Coverage area of 85 L