Features: The calculator is made of plastic and electronic components, the bottom of the calculator has a non-slip gasket, which is not easy to slip during operation. Two-way power: solar and 1x AA battery (Not Include). With a for smart shape and modern design, practical to use. Ultra thin, portable and useful. compact, light weight and easy to carry. Automatically shutdown when you don'for t use it. Specifications: Size: Approx 12X14.5cm/4.72X5.7in Color: Blue/Pink Weight:130g Material: ABS Note: Transition: 1cm=10mm=0.39inch Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. for Wish you a pleasant shopping experience! Package includes: 1 x Calculator