8 Pieces 12-digit calculator, solar basic desktop calculator large display electronic calculators dual power handheld calculator for home office school Features : 2 Kinds of power supply : These 12-digit desktop calculators are powered by solar energy and batteries, which can work in bright places without batteries. But if you use it under low light, you need to insert AA batteries to ensure that the value on the screen is clearly displayed. Durable design : In addition to the constants for addition, subtraction, multiplication and division, the dual power calculator also has a wide keyboard and raised keys to help you press the buttons accurately, and the 12-digit LCD display makes the values easy to read. The calculator can also be turned off automatically, bringing you a good experience. Specifications : Material : ABS plastic casing Size : 14.5 x 11.9 x 4.6 cm/ 5.7 x 4.7 x 1.8 inch Weight : 125g (each piece) Color : as pictures shown Package includes : 8 x Basic calculators Notes : Manual measurement, please allow slight errors on size. The colors may exist slight difference due to different screens. The package does not contain battery.