Lidded Simmering Bowl, Chawanmushi Steamer, Chirori (Sake Server) - Set of 2 with 1 extra lid

Set of 2 lidded simmer bowls in gray ceramic with a stripe pattern.
Hon-suzu, Suzu-han, Tokkuri, Chirori, Hot Sake Warmer

- Color: Gray
- Design: Stripe pattern
- Quantity: Set of 2
- Material: Ceramic

Size
Height without lid approx. 7.5cm
Height with lid approx. 9.5cm
Rim width at top of bowl 7.5cm
Inner diameter slightly over 6.5cm
Base width 4.8cm

This image is believed to be a type of chirori or a lidded vessel for chirori, or a type of tokkuri (sake flask), used for warming Japanese sake.
This is a sake vessel primarily used for making kanzake (warm sake).
A chirori has a handle and a spout, and you can pour Japanese sake into it and warm it by immersing it in hot water heated in a or other container.
A lidded vessel like the one in the image helps to retain heat when making warm sake and also prevents dust from entering.
In addition to ceramic, they are also made from materials such as tin, brass, and silver.