Children can build, stack and play while early learning ABC’s and 123’s. Ten whimsically-illustrated cardboard blocks of varying sizes that perfectly nest and stack up to 39”. Large block is 6” and smallest bock is 2”. Box size is 6.5”W x 9.25”H x 6.5”D. All Crocodile Creek's puzzles are printed with soy-based ink on recycled cardboard, and conform to or exceed both U.S. and European safety standards.