Handmade hats for cats and small dogs. Overall: 20cm (excluding the string) Ear to ear: 6cm Ear hole length: 6cm Regarding dogs, the shape of the ears differs depending on the breed. It should be fine for dogs with upright ears, but please consult if your dog has floppy ears. I will make them to fit the size. I make them carefully with care, but because they are handmade, there may be some slight imperfections or distortions. I would appreciate it if you could purchase them with this in mind. I have a cat in my family. Please refrain from purchasing if you have allergies.