Magnetic Foam Rainbow Fraction and reg; Circles provide a visual and tactile way to teach fractions. Just place the color-coded fraction pieces on any magnetic surface to add, subtract, compare and discover equivalent fractions. Set of 51 soft foam pieces features fraction values of 1 whole, 1/2, 1/3, 1/4, 1/5, 1/6, 1/8, 1/10 and 1/12. Packaged in a sturdy plastic storage case. Circles are 3.5 and rdquo; diameter.