POST FLOWER is a flower letter that contains packaged flowers in a hard case.
The back of the hard case is designed to fit a postcard, so you can simply affix a stamp and drop it in the post to send it.

A special card with an illustration by Maegami Mami is placed underneath the postcard-sized case, and the dried flowers are packaged together with the blue carnations to give the impression of the flowers growing freely.

I was so happy when I opened my mailbox and found flowers waiting for me.
It would also make a special gift to include a message to your mother and send it along with a letter.

This time, we have undertaken a special collaboration with illustrator Maegami Mami.
The blue carnation grows from a heart-shaped root, which represents the heart, and harmonizes with various other plants, nurturing feelings. The flower language of blue carnations is said to be "eternal happiness."