The Dogline Service Dog Patch is made from high-quality silicone rubber that is designed to last. The patch features an elegant black/white/red color scheme and is embossed with raised letters and a border. The hook backing makes it easy to attach to a dog’s harness or vest, and the patch is easy to remove and reattach when needed. The Dogline Service Dog Patch is available in one size: 1. 5″ x 4″.