This is an original, handmade item not found in books. It's a head covering for cats, small dogs, etc., representing the Year of the Horse (Uma) for next year. The chin strap is sewn closed and does not open. Please note that there may be slight variations in size depending on how it's measured. Once you receive it, please adjust the shape before putting it on your pet. We hope you'll use photos of your proud cat wearing it for New Year's greetings on social media or in New Year's cards. Please use it under the supervision of the owner to prevent accidents. #cat #headwear #hat #handmade #handknitted #cow #amigurumi