The NatureROCKS Rust Sandstone Medium Boulder is a beautiful decorative sculpture and a fun playground climbing structure rolled into one. Its natural appearance invites countless possible scenarios for kids to imagine. Perhaps they will be adventurers, climbing to the peak to survey their surroundings, or hiding under the rocky ledge to avoid the desert sun. Although it looks just like a rock, kids will find infinite ways to have fun with it. It has a highly realistic rough texture which is hand painted to give it a beautiful reddish coloration. This gives a small amount of traction to help grip the many crags and ledges which make this boulder as climbable as possible without sacrificing its realistic appeal. For safety purposes it should be surrounded by a safe area of protective surfacing, and should only be climbed by children aged five and up. The entire structure is comprised of highly durable glass fiber reinforced concrete, which prevents cracks, wear, and weather damage.