Perfect for underneath bed pads, futons, and inserts. Absorbs moisture and odors quickly. Non-stick, safe for bedding, silica gel does not liquidate or expand when absorbed, so you can rest assured that it will not discolor or stain your bedding. Reusable, economical regenerating signal lets you know how the seat is absorbed at a glance. After absorbing moisture, simply hang it in the sun to restore it easily. Hygienic mold and odor resistant Moisture Wicking Indicator