Approximately 21cm in diameter. This is an ivory (off-white) knitted beret. It has a pom-pom (with fur) and is made of a hand-washable material. I purchased it several years ago and have stored it in a dark place without ever wearing it. The pom-pom on the top of the head is attached with a pin and can be removed. Although it's for children, I think adults can wear it too. Perfect as a gift for children. Available for immediate purchase. [If you purchase the black beret, which is a separate item, at the same time, I will discount it by 500 yen. Please comment if you wish.] Beret Pom-pom included