Eureka Manipulatives are great for teaching early childhood learning and a great tool in helping students recognize connections within each educational topic. Each pack includes 176 one-inch square plastic tiles with lower and upper case letters of the alphabet in a plastic storage tub. Teaches letter recognition and spelling. Plastic tub measures 3.75″ x 5.5″ x 3.75″. Not for children under 3 years of age.