CASIO ミニ卓上電卓 MS-20F
https://www.friendstore.com.hk/shop/350071-casio-minizhuo-shang-dian-zhuo-ms-20f-10141
https://www.friendstore.com.hk/web/image/product.template/10141/image_1920?unique=8deacbd
12 DigitsDimensions (D × W × H) : 148.5×101×27.6mmWeight : 105g