Sure-stick magnetic letters and numbers are available in 2 sizes, 1-1/2" regular or 2-1/2" jumbo Color-coded sets help teach differentiation with red vowels, blue consonants, and red math symbols with blue numbers Multi-colored sets come in an assortment of red, blue, green, yellow, orange and magenta Alphabet assortments come with more of the letters you need most (extra vowels a, e, I, o, u, and consonants b, l, m, r, s, and t) Each set is packaged in a durable, clear stacking tub with lid for convenient storage Small Parts. Not for children under 3 yrs.