Trekbest Balance Chairs Game Toys - 18 Chair Toys Stacking Intelligence Multiplayer Parent-Child Game as Birthday Gift Trekbest Balance Chairs Game Toys foster hand-eye coordination, balancing, problem solving, memorizing and other important learning skills There are 18 chairs which have to be stacked in a certain pattern, without falling or dropping in mid-way, so that the pile remains steady and stable Object of the game is to stack the chairs as hight as you can without letting them topple, whoever drops is the loser So many different ways to stack you'll never have the same game twice. Could somewhat lower difficulty, with other hand help hold nethermost bottom stool Great game for all ages and is designed to entertain and stimulate the mind. Recommended for children 3-years of age and older