The Disc Nano diffused air Plate set is a product designed for aquariums. It is used to diffuse air into the water, which is essential for the health of fish and other aquatic creatures. The set includes a plate that can be easily installed in the aquarium. The diffused air helps to increase oxygen levels in the water, which is necessary for the survival of fish and other aquatic life. This product is ideal for aquarium enthusiasts who want to maintain a healthy and thriving aquatic environment.