Hydrosorbent 450 Gram Silica Gel 33 Cubic Feet

Non-toxic: no harmful vapors, no chemical reactions or stains. Safe for foods, medicines, sensitive materials, electronics, clothing, collectibles and more. Reactivate your unit easily in any conventional oven so it can be used for a lifetime of moisture protection. Built-in indicator that signals when it is saturated and ready to be reactivated.