Set of 2 Service Dog Reflective "SERVICE DOG" Velcro Patches. Velcro Makes It Easy to Change. For any Vests With Velcro Loop Material. These Patches Have Velcro 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. Printed Lettering is Easy To Clean.