Bring excitement to any classroom test with these interactive buzzers. The game-show; buzzers turn any lesson into a game. Ideal for tests and quizzes. Interaction actively engages students. 4 vibrant colours. Pretend to be in your very own game-show. Buzzers measure 9cm diameter. 1 or more players. Batteries required: 2 x AAA (not included). For ages 3 years and over. WARNING(S): Not suitable for children under 3 years old. Only for domestic use. To be used under the direct supervision of an adult. This toy does not provide protection.