Metal Fifteen Pocket Puzzle __BOOK even for those who know

even for those who know their 0's and 1's

Measures 14" x 7" x 3" with a USB plug included

Confetti and Striped colors will vary according to availability

the balls can be arranged to hold playing cards

The pattern is maddeningly difficult to decipher

Metal Fifteen Pocket Puzzle __BOOK even for those who knowThe 15 puzzle is one of the most popular puzzles ever produced, this brainteaser has stumped millions since the 1870s. The tiles can be scrambled in seemingly endless combinations which makes it quite challenging to get all fifteen numbers back in the right order. This sophisticated steel and enamel reproduction puzzle is packaged in a red leatherette case.