The Maximum Series Gear Panel is a useful activity panel which features a series of colorful plastic gears, which children are able to rotate by hand. It contains a total of eleven gears, all connected to the movable one at the center. This is a panel which can be enjoyed by everyone on the playground. Those who understand the workings of gears will immediately recognize and know how to use this panel, while those who do not will be mystified by their synchronous movement. This is a simple way to get kids thinking about physics and engineering without them even realizing it. This is a great panel for use on the edges of elevated decks since it functions as a great barrier and window, in addition to being a great activity. It blocks off the ledge to make it safe, but since most of the center portion is transparent plastic, it still offers a good view of the playground.