Original casio scientific calculator fx- 991ex plus classwiz for students . Latest version(version b). We do both retail and wholesale. Durable and effective and has two way power. (battery and solar ) never worry about your location.552 functions and does graph as well

Original casio scientific calculator fx-991es plus for student. Version f (latest version). We do both retail and wholesale. Durable and effective and has two way power. (battery and solar ) never worry about your location

Original casio scientific calculator fx-991es plus for student. Version f (latest version). We do both retail and wholesale. Durable and effective and has two way power. (battery and solar ) never worry about your location