These wooden puzzles seem so basic and straightforward when assembled. How hard can it really be to put them back together? Take them apart and you’ll soon reveal the challenges that will test your nerves. Each of the 4 puzzles is constructed from solid wood and can be reassembled without forcing any of the pieces back together again. Start with the basic 5-piece brainteaser and work your way up to the intricate 21-piece design. Includes 4 puzzles and solutions.