Keep your cat in style! Our Designer Cat Bells easily attach to the D-ring of your cat's collar, alerting you to your cat's whereabouts. Designer Cat Bells are available in a 12 mm round and a 13 mm cowbell-shaped design. These cat bells feature a frosted finish with a jewel accent to keep your cat looking stylish. Available in round and heart shapes with the heart shape featuring a jewel accent on both sides.