My kitten was too small for all the big boy collars when I adopted him, yet I still wanted him to get used to wearing one and wearing a tag. So I got him one of these because they're so stretchy they could fit any size. Only problem is that they stretch too much. I came home one say and the collar was around his neck as well as one front let. He was lucky he didn't hurt himself. After that incident It was too stretched out to wear so we went to an Angel brand collar. But for the most part I found this excellent, cute and reassuring that despite his best little efforts he couldn't finesse that poor collar off.