This is a collar my dog used when he was a puppy. He quickly grew out of it, so he only used it for a few days. Therefore, it is a used item, but it doesn't show much wear. (There is some slight peeling on the metal parts. See image 3) ＜Size＞ There are 5 holes for size adjustment, with the following diameters: 27cm / 29cm / 31cm / 33cm / 35cm If you have any other questions, please feel free to ask. I will do my best to answer them.