It is made of zircon stone. It is standard size. It is silver colored. Fits all ear sizes. It is compatible with the left ear. There is no need to have a hole in your ear. In order for the products to be used for a longer time without losing their properties, it is recommended to use them by keeping them away from chemicals such as perfume, water, detergent and disinfectant. It does not darken if used carefully. Unless exposed to factors such as water and perfume, our products will not darken or deteriorate. To avoid any problems with your order after sales and to ensure customer satisfaction, please choose Bear&Pear as your seller.