Hydrosorbent 900 Gram Silica Gel for 66 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.