This is a Chopper hat for ferrets. The length can be adjusted with the string under the neck. Face circumference: (Maximum) ~17cm Height: Approximately 4cm Diameter: Approximately 7.5cm Please purchase only if you understand that this is handmade. *Will be folded for packaging. Instant purchase OK! #nona's knitting Ferrets Pet Small animals Hat Clothes Headwear Hat Costume Collar Necklace