Agoji Gold Brass Collar NecklaceAgoji Solid Brass Collar Necklace Fully Adjustable Handcrafted Gold Solid Brass 1. 5" Height then tapers to 1 3 4" in front Care Storage: Avoid lotions, any products containing alcohol, or wearing in wet environments as moisture accelerates the tarnishing process which is caused by the copper within the metal. All brass will naturally tarnish (darken) over time. To eliminate tarnish and get your piece back to it's original Gold color as received use