Keep your home, garage or work area safe from flooding with Quick Dam Sandless Flood Bags. These stackable bags contain a super absorbent powder that activates and swells when wet, providing effective absorption, containment and diverting of flood and storm water. Each pack contains six bags that are 90mm high, 600mm wide and 300mm deep. Bags can absorb up to 15 litres of water each. Note, this product is not for use with Salt Water.