Ani-Suppo Patellan Provides firm support around the kneecap Dog knee support for the left leg M size, suitable for a chest circumference of 15-18cm. I borrowed a sample from the animal hospital and used it for about a week. My dog was able to walk comfortably, so I was in the process of ordering one when it was suddenly decided that surgery was necessary, and I ended up not needing it. I would like to give it to someone who wants it. The attached image shows the breakdown of the purchase amount. By the way, it was the perfect size for a dog of about 4 kg. I think it can be adjusted to some extent. - Brand: anifull - Product number: 003-2013 - Applicable range: Chest circumference 15-18 cm - Size: M - Purpose: Compression support Thank you for looking.