what are kendamas
A kendama approved for use in competition by the Japan Kendama Association. Kendama is a kind of toy that has long enjoyed popularity in Japan among both children and adults. While it may appear simple at first glance, kendama is a deep game with more than 1,000 different techniques for players to try to master. It can be played anywhere and by anyone, both men and women, young and old. The game is said to be helpful in developing concentration and perseverance.