Technical specifications for Multifunctional Electronic Tic-Tac-Toe Board Board Games Montessori Puzzle Table Game Chess Chess Set, suitable for adults and kids. The game is made of ABS material and measures 9x9x2.8cm/3.54x3.54x1.1 inches. It requires 2 AA batteries (not included) and is recommended for children over three years old. Package includes 1 electronic tic-tac-toe game and 1 instruction manual. Origin: Mainland China.