This set has 250 colorful plastic rods of varying lengths. They're used to develop skills in counting, sorting, sequencing, graphing, pattern recognition, measuring, and basic mathematical operations.Details:Visual and hands-on math learningDurable plastic for long-term use and easy cleaningFor ages 3 and upContents:1 plastic storage box5 activity cards10 orange rods11 blue rods12 black rods12 brown rods15 green rods20 yellow rods20 pink rods20 gray rods30 red rods100 white cubes