Thinkfun Fifteen Puzzle Brain Game w/Case Instruction Booklet

ThinkFun Fifteen Puzzle, a classic sliding tile brainteaser game.  * A reproduction of the classic Fifteen Puzzle, featuring smooth, polished stainless steel tiles with decorative enamel.  * Set includes the puzzle itself, an instruction booklet with over 30 challenges, and a handy travel case. 
 * Players scramble the numbered tiles (1-15) and then slide them back into numerical order within the 4x4 grid, utilizing the single empty space. 
 * Compact size and durable construction make it an ideal travel companion for on-the-go entertainment. 
 * Appeals to puzzlers of all ages and is a great option for brain-teasing fun.