Freeze dried natto rolled with premium nori, sea weed.
Dried natto is flavored with soy sauce, green onion, mustard and rice crackers.
These are long-sellers for 20 years in Japan.
Seijo Ishii based in Tokyo is a supermarket selling premium products.
The size of each snack is about 5 cm. Basic 180g in 1 bag (The number of pieces is unknown)