Victor 8-digit pocket calculator, 900, dual power, 2-1/2″ x 4-5/8″ x 1/4″, black 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 large, 8-digit liquid crystal display (lcd), and large nonslip rubber keys. Large display offers 14mm digits. 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. larger quantity quotes available. Please call 1-888-978-7759. this product arrives to most customers in 2-3 business days.