It quickly absorbs water from sudden water outings or leaks. It is light and thin so it does not take up much space in your storage space. Please store it inside the cardboard for long term storage. The "10L" for 10L and the "5L" for 5L has been added. The "water catch" is domestically produced under strict production control. As a countermeasure for emergencies water discharge for building maintenance, such as various plumbing spaces, kitchens, and washrooms, to remove water deposits under the freezing showcases and elevator booths. or just about anything. As a countermeasure for water damage, it can be used to remove moisture in narrow spaces such as construction sites. The water catching bag is also considered to be post-treated. For 10 liters and 5 liters, place the included white granular calcium chloride in 1 liter of water, stir well and make a solution of water. Soak the "water catch" after use in the water solution. Remove from the solution for 3 to 4 minutes, squeeze it out like a rag after fully dehydrating, discard as general waste, or follow the instructions of each municipal bag and remove the contents from the soil. Please put the outer bag Can be treated as a general garbage. When it comes into contact with water, it absorbs and expands quickly. Super fast water absorption for quick response in emergencies. It is extremely lightweight and does not bulk up and is easy to store and carry, and is used to prevent water accidents such as intelligent buildings, computer rooms and power stations.