Mommy worries about me when I walk with her at night. I had a red collar that I wore, but I have large ruff and it was often obscured. Besides that, we lost it about a month ago. Now that even my evening walks are after dark Mommy decided I needed some lights. She couldn't find a good lighted collar for me so she made me some headlights (or wing lights) out of a couple of drawer lights and Velcro. Here I am wearing them!