This item is an authentic BB-8 bucket hat from the Star Wars Celebration 2025 Japan convention. 

It is new and official Star Wars merchandise, exclusively sold at this convention.

The hat is about 23 inches or 59 cm in circumference, a US Large.
The rim or lip is soft and about 2.75 inches. The "bucket" is about 3.5 inches deep.

The item is in-hand and ready to ship from the USA.

Please carefully review the pictures and ask any questions before purchase as returns will not be accepted.