Our Metallica Keychains come in a variety of shapes, including tire shapes, car shapes, guitar shapes, and letter shapes. They are customized in red, blue, gold, purple, white, bronze, and other colors using electroplating, spraying, and baking varnish. They are made of metal, which is usually more durable than plastic or other non-metallic materials and can withstand the wear and impact of daily use. The metal appearance gives people a high-end and professional feel, which can enhance the brand image or personal taste.