Silica Gel Desiccant Mulitsorb Tecnologies about 1 lb. per package Brand New, never used. I purchase a sealed container and have more than I will ever need. The following info is from several web sites that sell this. Protects 30 cubic feet. Once saturated with water, the gel can be regenerated by heating it to 120 °C (250 °F) for two hours. Can absorb 40% of its weight with water. Tyvex is virtually dust free and more tear and puncture resistant when compared to cotton. Note! The package states "Not Regenerative", however, I think that is because this is for protecting medical products. $7 each, 2 for $12 5 for $25 plus Priority Mail shipping.