1、Enhance Logical Thinking Skills: Sudoku training puzzle toy can enhance logical thinking skills, exercise brain agility, thus improve problem solving ability and enhance intellectual development. 2、Exquisite Design: The sudoku mind training toy is exquisitely designed, 6x6 sudoku boards, suitable for players of different age groups to challenge. Each board is designed not only for functionality but also for aesthetic appeal. 3、Portable: The sudoku toy is portable and can be used for sudoku games and entertainment anytime and anywhere, it is an ideal leisure toy. This flexibility means users can engage in exciting sudoku games at their leisure. 4、Premium Material: The smart sudoku thinking training toy is made of premium material, safe and dependable, which is suitable for both children and adults. You can use it with peace of mind. 5、Dual Function: The thinking training toy has dual function of education and entertainment, it is suitable as a choice for family parent child activities, promoting both intellectual growth and familial connections. Item Type: Sudoku Training Puzzle Toy Material: Plastic Battery Type: 250mAh (Shipped with Built in Battery) Size: Approx. 19x16.5cm / 7.48x6.50in 1 x Sudoku Training Puzzle Toy 36 x Accessories 1 x USB Cable 1 x Instruction Manual