The highest quality magnetic manipulatives available! Features stronger magnets than other magnetic number sets to ensure each piece stays where you want it and doesn't slip. Provides examples of numbers formed the same way students are taught to form them. Includes math operations signs to practice building and solving equations. Stores in a durable, stackable tub for easy cleanup. All 42 pieces in 6 colors measure 2.5"H each so they're easy for small hands to manage and provide tactile reinforcement of early math concepts. Intended for ages 4 years and up.