925 Sterling Silver Medal to be applied to your puppy's collar. Shiny finish with customisable engraving. Possibility to select a medal for small or large dogs. You decide to engrave only the front or the front and back. Medal length for small dogs 3 cm Medal length for large dogs 5 cm All our creations are Nickel Free so they do not cause allergies of any kind, in addition to the Galvanic treatment to which they are subjected, protects the precious metal from atmospheric agents and guarantees a good durability over time without it oxidizing.