Quick Dam Flood Bags/Sandless Sandbags absorb, contain & divert problem flood water. Flood Bags absorb, swell and gel oncoming water on contact to create a durable barrier. Flood Bags are compact, lightweight and easy to use. Perfect to keep stored away until needed. Keep your home and property protected from the dangers of flooding. They come in standard 1ft x 2ft sizes and jumbo 1ft x 4ft sizes.