This is the "uni WATER COLOR Sketch Set" from Mitsubishi Pencil. I bought it about 25 years ago at Nagasawa Stationery Center for 3,000 yen + consumption tax. It's a long-term, unopened storage item. It's a set of 12 watercolor pencils and accessories. The set includes 1 pencil (4B), 1 watercolor brush, 1 water container/brush washer, 1 pencil sharpener, and 5 postcards. You can enjoy both colored pencil and watercolor painting expressions. The manufacturer's suggested retail price is 3,000 yen.