"Working Dog Do Not Pet" Clip on Identification Hanging Patch Tag - Clips onto a Service Dog Vest, Harness, Collar, Leash or Carrier. DIMENSIONS: This clip on Service Dog tag measures approximately 4.5 long with the swivel clip and 4 wide. It It offers a 360 (degree) swivel snap hook that is made of plastic to prevent rusting. This tag is double sided. APPLICATION: The clip on Service Dog ID tag clips onto a larger dogs collar, a service dog vest or harness or a carrier. It is easily removed when not in use. These tags are created using 2 embroidered patches that are adhered together using a plastic clip for attachment. IDENTIFICATION: This embroidered Service Dog identification tag will minimize confrontations when out in public. HIGHLY VISIBLE: This hanging Service Dog tag is made with a heavy fabric making it extremely durable. This double sided patch tag offers bold text that is clear to read. CLEAR MESSAGE: These clip on tags are designed to inform the public that your dog is a service dog.