Thank you for viewing. This is a Showa-retro button. The colors are a marble-like mix of brown and gray. Also, the back is smooth, so I think you can use it for making accessories, etc. Button diameter: 2cm (measured by an amateur) Although it is a new, unused item, it has been stored at home for many years. It has been stored by an amateur. If you are concerned about any details, please be sure to comment. #button #high-class #ShowaRetro #newunused #browngray #setof8