ブングマン is a Top Rated seller trusted by more than twenty thousand Amazon.co.jp customers in Japan.
They sell in 文房具・オフィス用品 department from キングジム(Kingjim), ぺんてる, PILOT, Pilot, クツワ and other brands. They offer Prime shipping for the few thousand products they have in stock.
They are a Top 500 Amazon.co.jp seller, ranked 199th overall. However a month ago they were ranked 109th. Seller rank is based on the number of positive reviews received during the last 30 days.