The Spark Series Gear Panel is a fun activity panel with colorful plastic gears. Children are able to rotate the gear in the center by hand, and watch it turn all of the other gears around it. The gears are enclosed within two sheets of rigid clear plastic, which protects them and makes this panel durable, despite its large number of moving parts. The transparent areas of this panel also make it function as a window, which helps in areas with high, protective walls that some kids will be unable to see over. This is a great panel for children who want to imagine that they are engineers or mechanics. It is also great for younger children who will simply enjoy watching the colors and movement. The panel acts as both a fun, built-in activity, and as a barrier that protects children from elevated ledges on your play structure.