Use silica gel to preserve once-in-a-lifetime memories or create home décor accents and holiday decorations. Designed for all types of conventional flower drying art, this easy-to-handle, granulated powder safely and beautifully preserves your flowers with minimal shrinkage and fading. Preserve the natural blooms of roses, asters, carnations, dahlias, zinnias, chrysanthemums and more with this nontoxic solution. Details: 5 lb. (2.27 kg)Most flowers dry in 36 to 48 hoursMicrowavable and reuseableNontoxicIncludes instructions