いそきんちゃくでしょう
磯巾着でしょう
isokinchakudeshō

Noun
Desu Copula

Expresses probability in a polite manner ("probably…") of いそぎんちゃく

1. Probably a drawstring bag for seaweed.; Probably an isobukuro.

Polite
Presumptive
Conjecture
Usually Written in Kana