Set of 2 Service Dog Reflective"SERVICE DOG" Removable Patches for dog harnesses & vests. Set of 2 SERVICE DOG Removable Patches. Easy to Change For Vests With Loop Material, These Patches Have Hook Material On The Back Reflective Material Helps Keep You And Your Dog Safe at Night Unlike Embroidered Patches There are no Threads to Snag and Break Reflective Printed Lettering is Easy To Clean