Amazon.com : Sharp EL-531TGBBW 12-Digit Scientific/Engineering Calculator with Protective Hard Cover, Battery and Solar Hybrid Powered LCD Display, Great for Students and Professionals, Black,Black and White : Office Products
Sharp 10-Digit Professional Handheld Calculator - Midwest Technology Products
Sharp 8 Digit Pocket Calculator with Hinged Hard Cover (EL-243SB) - Walmart.com