Yisibo 2 Pieces Tactical SERVICE DOG Patch Tactical Patch Dog Harness Vest Patch Nylon Medical First Aid Red Cross Morale Patches Badges Superb embroidery thread SERVICE DOG patches,suit for different occasion. Sturdy Hook fasteners - on the back of the item there is hook fasteners,easy for change. SERVICE DOG Patch size 4 x 2 inch. SERVICE DOG print in bold letters on a background for easy identification and added safety. Interchangeable/removable - this tactical patches can be used for multiple dogs or a dog with multiple roles.Perfect fit many of the tactical dog harness or vest.