Albcorp Reflective Dog Patches with Hook Backing -Service Dog, Service Dog In Training, Do Not Pet, Emotional Support, Therapy Dog, Best Friend, In Training for Animal Vest Harnesses, Collars, Leashes Reflective SERVICE DOG patches to make your animal visible and safe at night or in the dark These Patches have Hook backing for secure attachment on service dog vests, harnesses, collars Built to Last: Woven of tough polyester material, these durable and sturdy patches will last Unlike Embroidered Patches There are no Threads to Snag and Break. For L-XL-XXL service vest/harness Removable/Interchangeable. Remove your Service Dog tags and replace them with any other Dog Patch