When you go out in public, it is imperative that strangers understand that your emotional support animal is working. Announce the presence of your service dog with the Mondo Medical Medium Dog Working Collar. The quick release dog collar features "EMOTIONAL SUPPORT ANIMAL" written across it so other people in outdoor spaces can clearly see that your service pet is hard at work. With 15.5 to 20-inch adjustable size, this flat dog collar medium neck band will comfortably fit on your dog's neck. Attach your service dog lead or leash (not included) to the service animal dog tag D-ring and take walks at any time of day. The service animal collar measures approximately 1 inch wide. Warning: This product can expose you to chemicals which is [are] known to the State of California to cause cancer and birth defects or other reproductive harm.