WiseTin indicating silica gel canister utilize high-quality indicating silica gel beads which are non-toxic and cobalt chloride-free. Each bead is 2 ~ 4 mm in size. The Wisetin 100 gram silica gel desiccant canister dimension is 5.5 x 2.76 x 0.71 inch. The 100 gram silica gel desiccant canister is embodied by stable properties, non-toxicity, excellent moisture absorption performance and does not affect products it comes in contact with. It is especially suitable for the moisture-proof packaging. Beads can be reactivated by placing into the oven for 3hours at 250F. Depending on silica gel beads condition, they may take shorter than the recommended time. Please check the silica gel beads color periodically. 20 YEARS OF DESICCANT MANUFACTURING EXPERIENCE Wisesorbent is US-based global manufacturer and retailer of premium high-quality desiccant packaging material with over 20+ years of experience in the sorbent control solutions. We have fully automated desiccant manufacturing and packaging machine manufacturing facility that is located in Marlton, NJ. Portable & Durable Silica Gel Tin Canister and Independent Packaging Each tin canister is 5.5 x 2.76 x 0.71 inch. By utilizing high-quality aluminum constructs, the indicating silica gel canister tin are firm and sturdier to prevent dents. Independent small portable silica gel tin canister is convenient for you to use and store. Each desiccant canister individually packed in bags which is easy to store. Indicating Silica Gel Beads Indicating silica gel beads: cobalt chloride-free orange indicating beads will change color to green when they become saturated with moisture. Each orange indicating bead is 2-4mm in size and will change to different colors at 20%-50%RH. When you find the beads begin to change color, it does not mean the beads saturated with moisture and the beads will continue to absorb the moisture until 50%RH. You can check the instruction to measure the humidity and moisture Transparent Window and Easy To Reactivate Look through the transparent window, if the silica gel turns from orange to green, it means the environmental relative humidity is greater than 50%. The reusable indicating silica gel canister desiccant dehumidifier can be reactivated by placing into the oven for 3 hours at 250F. Depending on silica gel beads condition, they may take shorter than the recommended time. Please check the silica gel beads color. Lots of Uses The silica gel desiccant canisters 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. Put silica gel desiccant canisters into the containers, ammo cans, rifle parts cases, camping gear totes, holiday décor totes, guitar in it's case, headlight housings and other small storage containers to absorb excess moisture. The dehumidifier silica gel canisters help take care for camera gear in extreme temp change weather, protect tools inside the rolling tool cabinet and keep 3D printer filament spools, storing fabric, clothes, quilting fabrics, family papers, family collectibles, blankets, purses, electrical components, photographs, magic the gathering cards, document, tackle, guitar, hooks and basses dry. The silica gel can protect up to 120 cubic inch each One grams of any enclosed / sealed storage space such as safe, ammo cans, ammo boxes, tool box, 3d printer filament sealed plastic storage box, weapon case, closet and provide a better solution keep moisture from guns, important papers, legal papers, collectibles, books, jewelry, photo album, shoes, camera lens, expensive camera equipment, toys, leather clothing, ammo, photo equipment Wisesorb 40g Desiccant Canister Wisesorb 200g Desiccant Canister Wisesorb 500g Desiccant Canister Wisesorb 750g Desiccant Canister Wisesorb 900g Desiccant Canister Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.5 out of 5 stars 202 4.6 out of 5 stars 74 4.1 out of 5 stars 54 4.6 out of 5 stars 641 4.6 out of 5 stars 641 Price $11.98$11.98 $15.99$15.99 $16.99$16.99 $18.98$18.98 $20.99$20.99 Easy To Reactivate ✓ ✓ ✓ ✓ ✓ Color IIndicating ✓ ✓ ✓ ✓ ✓