Product specifications It only consists of orange indicating silica gel, and it’s an excellent and safe one without cobalt. Product package is made of PET which can be used for pharmaceutical and grocery use. It’s durable and stands repetitive use of microwave and oven. External package used durable PET and has zipper to store the remaining items for a long time. When the item turns into green, apply heat over it using microwave or oven to use it again. It doesn’t take much space for it doesn’t get bigger even if it absorbs moisture. Package Size : 7.08 X 10.2 inches Silica Gel Packet Size : 5g (0.17oz) 1.92 X 2.55 inches Silica Gel Beads Size : Approx. 2mm(0.07In) - 4mm(0.15In) Ingredient : Silica Gel High Capacity of Water Absorption : up to 50%,a 5g desiccant packet is able to absorb at least 2.5g water. Safe without Chemical Leakage Problem : No physical transformation when in use, nontoxic, no harm, no pollution, cobalt chloride free. Microwavable & Reusable : Just 1-2 mins fast reactivated in microwave, also can be dried in oven. It depends on the performance of the microwave, so it is recommended to cut it in 1 minute increments and repeat it several times. Food Grade Materials : Safe to be used with foods and medicines. Easy Operation : Product comes ready to use. Functional : Widely apply to shoes, bags, clothes, jewelry, books, cosmetics, medications, vitamins, camping equipments, cameras, camera Lens, 3D filaments, decorations, safes, guns, ammos, canister, foods, cereal, seeds, nuts, snacks, cookies, spices, pet foods, etc Suggested Dosage : 5g for closed space Max 3L; in very humid conditions suggest use more packs to be more effective. Please note that it's hard to define how many days a packet can be lasts or how fast the color will be changed,the lifetime effected by use environments. How to reuse It’s easy to check the degree of absorption for it only consists of indicating gel. It’s easy to check the change of colors for it’s packed in transparent PET pack. When it absorbs moisture, it turns into green. Then, put it into microwave or oven to reuse it. Put the green color indicating gel in the oven with 200-250F for 10 min. or in the microwave for 0.5-2 hours to reactive it. Do not put it in the oven over 250F. (* Heating time depends on the status of beads.) No harmful substances! As a result of testing, no hazardous substances were found. Use it with confidence! Deodorization 99% This product has passed the tests of Korean accredited certification. Safe for Food and Medication Food&Pharmaceutical Grade Excellent Permeability. Read more Applicable Place Use with Air-tight Sealed Containers For maximum performance, all silica gel packets work in air-tight sealed container. If they are open to air, they are constantly absorbing moisture in open air and become saturated right away. Place packets and your desired items in a tightly closed container. Packets will not work in open air. Active Multi Shoe shelf, shoe, instrument, sporting supplies, electronics, camera, cellphone, iPad, container, souvenir, jewelry, document, lens, clothes, cosmetics, book, bags. Easy Reactivation Oven : bake packets for 0.5~1 hour at 200-250 °F Microwave : Defrost packets for 1-2 minutes. Start out with the least amount of time and increase the time if needed. (i.e. color not fully returned to the original state or steam visible inside the packet.) Read more PET Orange Packets Fabric/Cloth Packets Paper Packets Packet Material PET (Clear Plastic) Non-Woven Fabric/Cloth Paper Bead Type Orange Beads White Beads White Beads Available Sizes 10g, 5g, 3g, 2g, 1g 100g, 50g, 20g 10g, 5g, 3g, 2g, 1g Indicating Function ✓ Food & Medication Safe ✓ ✓ ✓ Rechargeable ✓ ✓ ✓