When designing this calculator, we considered the situations where it could be used and how to make it an object to enjoy. With portability in mind, we made the body design flat and slim, at approximately 9 mm, with an accent along the side of the smooth, curved surface to give an even slimmer impression. By contrast, the layout is user-friendly with large keys. The felt case, for occasions when we imagined it necessary to take the calculator along, contrasts with and compliments the beauty of the calculator’s body design and makes this a product that lifts your spirits.