Source google image: https://image.made-in-china.com/202f0j00VfZYdTeBYuka/Wooden-Children-Educational-Toy-Montessori-Color-Math-Shapes-Geometric-Puzzles-for-Kids.jpg
Children puzzle
Source google image: https://image.made-in-china.com/202f0j00VfZYdTeBYuka/Wooden-Children-Educational-Toy-Montessori-Color-Math-Shapes-Geometric-Puzzles-for-Kids.jpg