This 8 piece 1.5" wooden blocks are perfect for teaching kids to write. The blocks are chalkboard. They come with lamenated mats that will teach spelling. This tool works for a lot of ages from teaching kids to build words from letters you write or having the kids write the letters and put the blocks in order. Don't forget you don't need to use all 8 you can begin at any level suitable for your child! This set is just made to grow!! The blocks should be used under supervision. The blocks cannot be chewed.