This is a Snoopy-patterned T-shirt for dogs. It was purchased at Pet Three, and the size is 4. Please refer to the size chart in image 6. I bought it last year, but it didn't fit this year, so I'm selling it. I only tried it on a few times last year, so it's almost unworn. It has been washed in the washing machine a few times, so please understand that it is a used item.