Wooden Puzzles for Adults - Set of 4 New, Unused. Stimulate your wit with the warmth of wood. A set of 4 puzzles: 3 three-dimensional puzzles and 1 two-dimensional puzzle. Includes assembly instructions. Can train children's and adults' observation skills, imagination, and reasoning abilities, and also help prevent dementia. Ages 9 and up Imported by: Toa Kinzoku Co., Ltd. Stored at home, so thank you for your understanding.