This beautiful item shimmers like a captured sea. This is the cobalt blue color from the sea keychains, which also include blue, cobalt blue, aqua blue, and turquoise blue. It has a simple design that is easy to use for both men and women. Those who love the sea will love this item all year round☆ 【Materials】 Resin Silver hardware 【Size】 Length: Approximately 40mm Width: Approximately 20mm Thickness: 10mm at the highest wave point ◯ We try our best to display images that are as close to the actual colors as possible, but colors may appear different depending on your viewing environment. Please understand. ◯ Please inquire about any concerns before purchasing. 《Regarding Resin＊Precautions for Use》 Because it is vulnerable to heat, friction, and UV rays, do not leave it in direct sunlight or in a place that becomes hot for extended periods. Also, as a characteristic of resin, it may yellow or fade slightly over time, even when stored away from UV rays. If strong pressure is applied or if it is dropped from a high place, it may break, the adhesive may come off, or it may bend. Please handle with care. If you have any questions, we are happy to assist you via message. Please feel free to contact us.