Tic-tac-toe is one of the first games that many children learn how to play because it is so simple, yet so fun. Because of this, it is a timeless game that almost every kid knows how to play. For this reason, the Maximum Series Tic-Tac-Toe Panel is one of our most popular activity panels. It uses nine large rotating cylinders that can be turned to display an easily visible ‘X’ or ‘O’ marker, which is embossed onto the surface so that visually impaired children can feel them. When a game ends, the cylinders can simply be rotated back to their blank sides to prepare for the next match. Because of this, setup is easy, and the game can be played any number of times. As an added benefit, the panel acts as a barrier which can be used to block off the ledges of an elevated deck platform to make it safer.