Patent pending Moisture-Lock spill resistant technology. Locks in moisture through cover. Brine absorbing medium absorbs liquid to prevent spills. Can be used on the go or in stationary areas. Safety-sealed cover keeps contents in, pets and children out. Long-lasting, up to 6 months. Long term storage in boats, RV's, cabins, crawl spaces, basements, etc. Prevents mold and mildew stains. Protects from moisture damage. Reduces allergens and eliminates odors caused by moisture.