This is the second Perfect Fit harness I have bought on the strength of my total satisfaction with the original one purchased in 2016. I later bought a back up for this one. Both still going strong. The dog concerned for the latest one is a difficult one compared to the first being on the plump side and sags when you try to measure her! However, on chatting with the firm's representative a decision was made on the correct size. The harness arrived promptly. One small thing....we don't all have "bells and whistles" phones so the "scan" inclusion was no help. However, having a harness already I was able to put it together without too much trouble. I always recommend these harnesses where possible.