You will bubble over with happiness at the joy that the Tree House Bubble Panel will bring to your play structure. This panel is a great addition to any play structure. The panel is made out of strong and durable material that is molded to look like a series of realistic wooden planks that have been placed closely together. In the center of this molded wooden plank frame is the circular bubble window. This see through bubble panel is useful for parents to be able to see their children as they play on play structures, therefore allowing parents to monitor their children. The bubble panel is also helpful because children are able to see out and have a view of the rest of the playground without having their view obstructed by bars. The Tree House Bubble Panel is also a great way to keep children from falling off of a play structure and hurting themselves, while also ensuring that their view is not obstructed by bars.