DIMENSIONS/SIZES: Large 1.25" diameter Medium 1" diameter Powder Coated Aluminum Dog Round Tag Comes with a half inch ring to attach to dog collar. Ink infused into powder coated aluminum tag, fully coated, smooth edges HOW TO ORDER: Enter what you'd like on front and back: FRONT: 1-2 lines, 14 Characters per line BACK: 3-4 lines, 15 Characters per line STANDARD PRODUCTION TIME: 3-5 business days