Water-activated and self-inflating flood barrier featuring an inner absorbent which turns to gel to create a barrier. Absorbs water and rises to 3-1/2 inches high in just 10 minutes. Ideal to keep on-hand for quick and easy use to be prepared for flooding, leaking, and water damage. Can be used indoors or outdoors. Flood Barriers unused, have a 5+ year shelf life. Protects against storm surges, rainwater, water main breaks, overflowing appliances and equipment, and more. Perfect for the garage, basement, driveway, kitchen, and anywhere water could cause damage. Compact, lightweight, and quick and easy to deploy. A great alternative to traditional sand bags, with no sand or labor needed. Reusable and environmentally-friendly, pet-friendly, non-toxic, and non-hazardous. Last for months.