The aim of the game is to line up 4 of your balls in a row. But hold on a minute! A player cannot move a ball by itself or with a ball of their own color. Moves MUST be made with an adjoining ball of their opponent’s!The two balls are then moved together as a single unit, in any direction. Simple rules, intricate play.2 players, ages 6+Includes: 1 wooden playing board,20 wooden balls & instructionsBox size: 11" x 11" x 2.4"