Features: Siliga-gel desiccant can be used to protect camera, camera lens, microscopes, telescopes, audio and video equipment, CD, etc from mould. Keep photographs, stamps, currencies collections, optic equipments free from mold and deterioration. When silica-gel turns to pink, it can be recycled by heating in microwave oven with low or middle power, it takes 5~8 minutes until color turns blue. Also widely used for protecting precise instruments, such as leather, shoes, clothing, food, medicines and household appliances. Can be placed in closets, coat or sweaater inside the box to prevent mildew, etc. Specifications: Material: Silica Gel Color: Blue Package Size(2pcs): 12.5 * 6 * 2.3cm / 4.9 * 2.4 * 0.9in Package Weight: 102g / 3.6oz Package List: 2 * Silica Gel Desiccant Moisture Note: DO NOT EAT! Keep the power of microwave oven middle or low , or the plastic box will be over heated and deformed.