NATURAL MATERIAL: Genuine abalone shell earrings featuring stunning iridescent colors, each piece uniquely patterned by nature, they are a sacred symbol of the sea. Shells display an iridescent, multicolored surface, which can display a beautiful range of colors such as greens, blues, purples, and pinks. DESIGN FEATURES: 10mm round flatback studs with protective glass-like epoxy coating and black acrylic backing for durability, lightweight and comfortable METAL OPTIONS: Available with your choice of stainless steel or titanium posts for secure wearing comfort, Nickel-free hypoallergenic posts specially designed for sensitive ears, preventing irritation EYE CATCHING BEAUTY - Each pair showcases unique patterns of shimmering blue-green iridescence, making them truly one-of-a-kind pieces of beach-inspired jewelry. Abalone shells are an organic gem! Also referred to as Mother-of-Pearl, Haliotis Iris, Paua Shells, Nacre, Aulon, and Sea ear among others. DIMENSIONS: Each round stud measures 10mm (0.39 inches) in diameter, perfect for everyday wear, casual or dress up events Small enough and lightweight so these earrings are great for casual everyday wear or for more formal occasions such as weddings and bridal parties, formal dances homecoming and prom, etc! Perfect gift for your loved ones, such as girlfriend, wife, fiancée, daughter, mother, grandma, sister, aunt, best friend...