I am so sorry I have been down with the flu and totally forgot. Will try and get it measured in a little bit. My dog is 80 lbs and its too small for her however my other dog is 55lbs and its a little big on her so I am thinking it would be perfect for a dog between 60 and 70 lbs. My 80lb is a doberman female who is a big girl for her breed not fat just big and tall. My other is a dobie beagle who is a chunker. I don't know if that helps at all