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

and "Solitaire" in the U

Design your own artistic display with this modular sculpture toy

this devilish strategy game has been stumping great minds since the 17th century

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.