Bits and Pieces - Snap Latch Gift Box Brainteaser Puzzle - Wooden Brain Game for Adults This stylish wooden box looks easy enough to open, but lift the brass hinge and you will find it's much more tricky than you think to access the chamber within. Made of walnut. A great gift for people who love brainteasers and trick puzzles. Solution included. Measures 5" long x 3" wide x 1-3/4" tall.