Deluxe Attribute Blocks - Set of 60

A wonderful manipulative to aid in classification, congruent vs. similar, fractions, proportions, comparing, patterning and more. The 60 piece set includes 5 shapes in 3 colors and 2 sizes with two degrees of thickness. Compartmentalized plastic storage box with lid that functions as a sorter. Sides are 1.5" - 3"L.