Puzzle Jigsaw Box this fun puzzle will surely keep your little ones busy. Hand out to your guests or put in the party bag for an entertaining parting gift. Puzzle building improves your short-term memory. Jigsaw building reinforces connections between brain cells and improves mental speed. Jigsaw puzzles improve your visual-spatial reasoning. When you do a jigsaw puzzle, you need to look at individual pieces and figure out where they'll fit into the big picture.
