Click to expand Tap to zoom HS4GS Casio Handheld Solar Calculator NEW by Casio Sold out $9.99 | / 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Sold out BRAND NEW HS4GS Casio Handheld Solar Calculator 8 digits (16-digit approximations) Protective hard case covers screen and solar panel Independent memory Super solar-no more battery costs Flip-top hard case FREE SHIPPING