Includes a 1:1 scale batarang. Features 4 challenging Batman themed puzzles. Clever nods to other Bat-Family characters like Robin, Nightwing and Batgirl! Special callout to Batman's first appearance.

Think about how much longer one side of the strip was compared to the other one after the first fold. The answer is 1 inch, or 10 tenths of an inch. When inputting the answer, leave the left box blank ...

[Kagen Sound] is a woodworker and artist who gives a great behind-the-scenes look at his amazingly high-quality puzzle boxes (video). Not only do his varied puzzle box designs show his math background ...