Hours of creative, imaginative play for little kids with these wonderful block sets. 9 large 3.5” heavy duty cardboard blocks. Children can build, stack and play while also early learning the ABC’s and 123’s. Box is 10.75”x10.75”x3.5”. For ages 2+. 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.