Sake bottle with 2 sake cups (guinomi) set

This is a ceramic sake flask (tokkuri) and two sake cups (ochoko).

I fell in love with these at a pottery fair and bought them, but since I don't drink sake, they've been stored away mostly unused.
There are no noticeable stains, and I believe they are still in good condition.
The original box is not included.

[Product Description]
Flask:
Diameter: approx. 6 cm
Height: approx. 12 cm

Sake Cups:
Diameter: approx. 5.5 cm
Height: approx. 4 cm

Material: Ceramic

For evening drinks
Sake
Hot sake
Cold