These versatile manipulatives make visualizing fractions a snap. Perfect for small - group activities, the Deluxe Rainbow Fraction Circles Set comes with a dual - use work tray/storage box and includes one whole circle plus eight circles divided into halves, thirds, fourths, fifths, sixths, eighths, tenths and twelfths, plus Teaching Notes. Circles are 3.5" diameter. Color - coded to correspond to all Rainbow Fraction products. WARNING: CHOKING HAZARD - Small parts. Not for children under 3 yrs.