Every playground or a garden needs to have a rubber stepping post. The individual rubber stepping post from Child Works is a great product where a kid jumps from one stepping post to another. In this way, his or her mental and body coordination and observation power develops. The unique stepping-posts come in four different models, each with a support post for mounting. Place all the models side-by-side keeping a bit of distance to gain maximum enjoyment. The models come in height of 7-1/2-inches, 11-1/2-inches, 15-1/2-inches, and 19-1/2-inches. Contact us for full installation instruction or request this product online today! Each post is 10-inches in diameter.