Durable, Twin-Powered Basic Hand-Held Size Calculator with Extra-Large Display.

Extra Large Display, 8-digit (13.5 mm) LCD display with punctuation.
Metal Cabinet, durable design for longer life.
Twin Power Solar Operation, automatically switches from solar cells to battery power in low light.
4-Key Memory, includes memory plus, memory minus and recall/clear memory keys.
Additional Features:
colored conversions keys, sign change, percent and square root keys, and protective wallet.