Electro Wonderpen Auf dem Bauernhof, 3 yr(s), Sounding, Batteries required, LR41, Cardboard, Plastic, Multicolor Electro Wonderpen Auf dem Bauernhof. Recommended age (min): 3 yr(s), Recommended age (max): 5 yr(s), Minimum number of players: 1, Maximum number of players: 1, Sounding. Batteries required, Battery type: LR41. Material: Cardboard, Plastic, Product color: Multicolor