Pelican Desiccant Silica Gel 1500D "drinks" dampness, preventing condensation from trapped air when cases are opened in damp, high humidity climates.
40 gram unit draws-in and traps the moisture for up to 3 cubic feet of enclosed space. Ideal for gun, camera and telescope cases, tool boxes, silver drawers, etc. Top grade silica gel is contained within a compact aluminum canister that measures only 4" x 2" x 1/2"; has a built-in indicator that turns from blue to pink to signal need for reactivation. Easy to reactivate in any oven - indefinitely. Lifetime protection.