The NatureROCKS Log Tunnel gives kids a fun obstacle to climb over, sit on top of, crawl through, or hide in. Kids will find numerous ways to play, limited only by their imaginations. Although it looks just like real wood, the NatureROCKS Log Tunnel is actually composed of an extremely durable glass fiber reinforced concrete. An incredible level of detail is added to the wood and bark textures, which are then carefully hand painted. It is sturdy enough for multiple kids to sit or play on top of it at the same time, and large enough on the inside for multiple children to sit there as well. It even includes a window, cleverly designed to look like a knot hole, for kids to peek out of while they hide. The tunnel is 30” high and 34” wide, and comes in either 4 or 6 foot lengths.