These sturdy multicolor foam dice are quiet, safe, and have rounded corners for easy rolling. Each die has a different representation of fractions, including area models, set models, fractions on a number line, and fractions written in standard form. Details: Multiple Representation Fractions Dice design 6.25 x 6.25 x 8.5 Set of 16 Storage tote included Foam, plastic For ages 5 and up