Eight-digit, handheld calculator is engineered with an antimicrobial agent to reduce the growth of microbes and bacteria that can cause discoloration and odors. Compact design offers extra-large 8-digit liquid crystal display (LCD), and large nonslip rubber keys. Protective, hard-shell case contains a high percentage of recycled plastic. Functions include three-key independent memory, percent, square root keys and automatic constants. Calculator is dual-powered with solar and battery backup.