Kindware, a Japanese luxury brand, is a company known for its high-end craftsmanship and quality, with techniques honed in the UK, specializing in button accessories for luxury shirts. This item was purchased during the bubble era and has been kept as a special gift for important clients. It features black butterfly shell "Mother of Pearl" with a silver 950 backing and an engraving. The dimensions are 2 x 1.7 cm, and it comes with the original case. Thank you for your understanding and consideration.