Purchased in June at a major electronics retailer for approximately 2700 yen and used twice. This is a thin ELECOM-brand numeric keypad with a slim 6.5mm thickness, making it convenient to carry. I can include the box if you need it, so please let me know. - Brand: ELECOM - Model Name: TK-TCP018BK - Type: Numeric Keypad - Size: 6.5mm thick - Compatible OS: Windows, Mac Thank you for looking.