クッション封ふう筒とう

noun

padded envelope; bubble mailer

A mailing envelope with built-in cushioning, typically bubble wrap, used to protect fragile items during shipping.

• 割われ物ものを送おくるので、クッション封ふう筒とうに入いれてください。

  Since I'm sending something fragile, please put it in a padded envelope.