I originally ordered the nrs chain curb that showed in the app. as a 3 link but was actually a 4 link. NRS made it right for me by refunding my money back. Then I still wanted a 3 link and they said the Professional Choice was similar to the nrs o e so I went ahead and bought them. When they arrived I was so disappointed. It looked like something you would use on a draft horse. The links were huge and cheap looking, and they were more expensive. I will be returning these.