Specification: Circle: 10cm diameter Tiles: 10cm x 2.5cm x 0.2cm Description: Material: EVA soft foam Rainbow Fraction Tiles represent a whole, halves, thirds, fourths, fifths, sixths, eighths, tenths, and twelfths. the "whole" piece is 1" x 6". Fraction circles include 9 pieces representing a whole, halves, thirds, fourths, fifths, sixths, eighths, tenths, and twelfths, which help students recognize equivalences. Safety Standard ASTM F963 & CPSIA2008 New Standard