good used condition Halo Dog collar few bumps on the rubber part of collar as shown does not effect usage at all. We used this for a short time (about 3 months off and on) to train our goldendoodle. It was a fantastic tool to have! all pieces are in the box, we never used the little beacon so I'm not sure if the battery on that is still working or not. size large has been disconnected from Halo app and ready for a new home!