Set of 2 Working Animal Reflective & Removable Hooked Backing Patches for XS, S, M, L, XL, and XXL size Animal Vests and Harnesses. Why should you buy our patches? Our Working Dog Patches allow you to change the identification of your Service Dog Vest or Harness in just a few minutes. Featuring large, reflective lettering that is recognizable even from a distance. If your Working Dog has multiple jobs the interchangeable patches help indicate its function or status at any time. Working animal vests ensure that the public sees your companion as a working dog and not a family pet. Be sure to measure the velcro area on your vest or harness to select the best fit as some brands are slightly different in size. Just 4 Paws Working Dog Patches are available is 9 styles, "In Training", "Do Not Pet", "Service Dog", " Service Dog in Training", "Therapy Dog", "Best Friend", "K-9", "Adopt Me" or " Emotional Support"