The Casio SL-310UC is 10-digit, portable calculator with an extra large display and plastic keys that were designed for easy operation. It has features for tax calculation, time calculation, and profit margin percentage. With function command signs, you can easily see the status of operation you are currently performing. It contains a convenient key rollover, which stores key operations in a buffer to ensure that nothing is lost even during high-speed input.¿10-digit portable calculator in white¿Extra large display¿Plastic keys designed for easy operation¿Two-way power - solar powered when light is sufficient and battery powered when light is insufficient¿Features tax calculation, time calcul, tion and profit margin percent¿Function command signs ¿Key rollover which stores key operations in a butter¿Dimensions: 70x118x8.4mm (wxdxh)