Easily make calculations wherever you go using this solar calculator. Made of durable, comfortable ABS plastic, this 4″ x 2.6″ calculator features an 8-digit display, sensitive plastic keys, and a long neck lanyard for easy portability. The calculator can be powered by the built-in A button battery and solar energy. Add a brand name, logo or message to customize. Minimum order quantity is 50 pieces. Rush service is available.