• 【Durable Silica Gel Tin Canister】: The pinhole design of the metal can body is for effective moisture absorption and heating for easy to reactivate. Per-Canister size is 7.24*7.24*0.8inch. Our product of WiseTin siries be perfect for gun safe, Safe,Bookcase and soon on.
• 【Color Indicating Beads】: Orange silica gel beads cobalt chloride-free and will change to light green at 20%-50%RH. If you find color of the beads start to change that does not mean dessicant stop work and the beads would continue to absorb the moisture until 50%RH.
• 【Great Absorbing & Widely Application】: Portable 500 Gram Dehumidifier contains moisture indicating silica gel Beads. You can use these desiccants in a few safes, closed space to control humidity. Such as safe, ammo cans, ammo boxes, tool box, 3d printer filament sealed plastic storage box, weapon case, closet and gives for storing items long-term as for guns, important papers, legal papers, collectibles, books, jewelry, camera lens, expensive camera equipment, ammo, photo equipment.
• 【Easy To Reactivate】: You can reactivate the silica beads and needn't open the box. Just placing into the oven for 0.5h-3 hours at 200°F-250°F (do not over 250°F).
• 【Package Included】: 5 packs of 500 Gram desiccant canister. Dimension of silica gel beads is about 2-4 mm. Size of aluminum-can is 6.81inch（173mm)*6.81inch（173mm)*0.79inch(20mm).Pinhole of can body size: Tapered outer diameter φ2.00±0.02mm, inner diameter φ0.5.00±0.02mm.