Laputa's Pazu-style stainless steel lunch box / food carrier ??

Thank you for looking.
This is a stainless steel container reminiscent of the lunch box carried by Bazoo from Laputa.
Approximately 11cm in diameter and 21cm in height including the handle.
The three containers can be securely fastened together with clasps.
It's stylish for camping use or as interior decor.
After purchase, it was never used as cookware and has been stored at home.
Due to being metal, there are scuff marks from the fastening process.