I used this for my 3.5kg toy poodle, but she's almost 4kg now, so I'm selling it. It was very useful and didn't hurt my shoulders♡ I hope it goes to someone who will cherish it. It's still usable, but if you look closely, there's a stain on the edge of the tag. Please refrain from purchasing if you are concerned. It comes with a scrunchie, but it's a little stretched out. If you have a cute scrunchie at home that you're not using, I think it would be cute to wrap it around and store it. Size M Short Details are in the last image. If the size fits, please consider it^_^