This puzzle is shaped like a flying saucer with two halves that you twist to pass balls from one side to the other. Your job is to scramble the colored balls, then figure out how to get them back into their matching slots — on both sides. Back Spin might
Awards:
ISBN–13: 19275058005
Publisher: ThinkFun
Publication Date:
Pages:
Lexile Level:
Ages: 8 - 12