【Tyvek Packaging Material】: Silica Gel Packs utilize Tyvek as packaging material, good breathability, dust free and does not contain binder or solvent. Stronger seal, water based ink, does not runoff.

【White Silica Gel Beads & Package Includes】: Silica gel packs utilize premium quality and reusable raw material. Desiccant Packs are cobalt chloride-free, non-toxic, non-hazardous and DMF-free. Silica gel raw is stable both physically and chemically. It is not combustible or corrosive. 500 Gram 40pcs Silica Gel Packs. Nice sized dessicants dimensions of each packet: 5.9" x 7.09".

【High Quality Standard and Moisture Absorption Rate】: Silica gel can protect up to 120 cubic inch each one grams of any enclosed or sealed storage space such as medicine bottles, pill bottles, reagent bottles, safe, ammo cans, ammo boxes, tool box, 3d printer filament sealed plastic storage box, weapon case, closet, etc. Also can be widely used in storage and transportation for machinery, electronic products, auto parts, large devices, etc.

【Widely Used】: Silica gel desiccant packets provide a better solution keep moisture from guns, important papers, legal papers, collectibles, books, jewelry, photo album, shoes, camera lens, toys, leather clothing, ammo. photo equipment,etc. This type of desiccant is also widely used in mental processing, machine manufacturing, electric manufacturing & clothing industries for moisture prevent and proper storage.

【How to Reactivation】: Please pay attention, the silica gel packs can not be heated directly due to Verna Paper Packaging low melting points. You can cut open the packet then place silica gel beads on a shallow dish or backing sheet to heat to reactivate: Oven: 0.5 - 2 hours at 200 - 250F. Microwave: DEFROST Packets for 7-12 minutes. Then place the silica gel beads in muslin bags to reuse.