Erzi Balancing Wooden Seesaw helps improve coordination, balance and ankle strength. The goal of the game is to make the balls move to the other end and then back again by shifting your body carefully. Erzi Balancing Boards are made of waterproof bonded laminated wood, so they can also be used outdoors. This board can bear a weight of 100 kg, so adults can use it too. Erzi Balancing Boards can also be used for rehabilitation exercises. Includes 2 wooden balls. Erzi Balancing Seesaw is made in Germany.