Milan Anti-bacterial M240 scientific calculator. White and turquoise colours with hard-wearing translucid turquoise protective cover. Treated with silver phosphate glass with antibacterial effect (calculator’s body, keys and cover). Ideal to improve hygiene at school, in the office, in environments in contact with food and sanitary environments. Power: 2 x AAA batteries (included). Measurements: 16.7 x 8.4 x 1.9mm