3 - Silica Gel - Hydrosorbent® Dehumidifiers 40 Gram Canisters Desiccant Dehumidifying Drying Unit<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Helps to keep moisture away from your valuables.</li><li>Can adsorb 15 percent of its weight in water vapor in 2 hours.</li><li>Reduces condensation and remains dry even during humid， damp conditions.</li><li>Prevents rust， mildew， corrosion and spoilage before they begin.</li><li>The 40 gram canister measures 4” x 2” x 1/2” and will cover an area of 3. CU. FT. of enclosed space.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41XMAYS3SWL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51b-w6PoqeL.jpg" noproxy>