A solar powered soft silicone calculator is a good study gift for kids. Features 20 buttons displays 8 digits, easy to read screen display and numbers. Solar powered for energy saving and environment friendly. Slim & foldable design allows you can pack it anywhere you want. It is perfect for daily calculation, clear and practical, suitable for school, home and office. 4 5/8" L x 3 1/2" W x 5/16" D