Non-toxic materialsAll letters are made of non-toxic, environmentally friendly EVA foam. The texture is very soft,and the proper size of letters to prevent children from swallowing it by mistake. Fun learning experienceIt helps your kids learn the alphabet, letter-sound association, spell words count and subtract. Standard writing font helps to develop children's better visual cognition. Perfect learning tool Each square box has a corresponding letter code that allows the child to learn to distinguish and classify. The vowels in red and consonants in blue are convenient for children to learn pronunciation and grammar. Double Sides Magnet BoardIt can be used for spelling words and creating sentences, math training,very easy to erase and reuse. Package includeThe sturdy storage box contains letters, among which are 2sets lowercase letters, 1set uppercase letters,and 10 numbers and 7 math symbols,1 double-sided magnetic board.