M, Pink Magic tape, adjustable size Please check the dimensions in the photos. New Purchased for 6580 yen. My pet doesn't like clothes, so I thought a harness would work. But, as expected, they won't wear it. It's cute and expensive, so I bought it hoping they would wear it, but they refused as soon as they saw it. Also, it's not suitable for a 6kg dog. For dogs under 6kg. The magic tape allows for easy adjustment for smaller dogs. Lightweight and easy to put on, without having to put their legs through. The frills and pink color are very cute.