12-Digit Desktop Calculator w/ Detachable Keycap includes the following features : 

• 12-digit screen is clearly displayed, making reading easy and fast
• The keycap is detachable, easy to clean
• The tablet design makes the body thin and flat, which is convenient for daily use and portability
• Adopt button battery or solar power supply mode
• Powered by 1 x L1154F batteries (included)
• Solar panel for switch
• Adjustable angle bracket at the bottom, and the information displayed on the screen can be easily viewed
• Various colors and logo imprints are available

Material :

• ABS housing

Size closed :

• Length of 18.4 cm x Width of 10.2 cm x Thickness of 1.5 cm