The NatureROCKS Dark Gray Granite Medium Boulder provides a wild, rustic appearance for playgrounds and a fun place to climb for kids. It has a highly detailed surface with a rough texture and a carefully hand painted finish that makes it look exactly like real granite. The structure of it is modeled after actual stone outcroppings, but subtly designed in a way that gives it plenty of ledges and hand-holds that allow kids to climb all the way to the top. Kids will feel accomplished as they pretend they have just conquered a mountain peak. The medium and large sized boulders are recommended for children aged five and above, and should always be surrounded by a safety usage zone of protective surfacing. It is made from concrete reinforced with fiberglass, making it as robust and durable as the granite that it resembles. A rust sandstone version of this boulder is also available.