The Mitosis Cell Division Model Activity Set is an anatomy activity set from American Educational Products and manufactured in the United States. This anatomy set illustrates somatic cell division with enlarged views that detail the five phases of mitosis. The set features: cytoplasm nucleus, nucleolus, chromatic threads, centrioles, aser, spindle, chromosomes, and centromere. This activity set is best used for student education. The Mitosis Cell Division Model Activity Set is 24.0 x 17. in and weighs 1.98 lbs.