Seven Second Boat Puzzle. Product description This puzzle is in the shape of a boat and there are two steel balls in it, having a cross wall. The boat has two puddles on corners. The balls are to be set in them in 7 seconds. Handover the puzzle to them and let them try. You then solve the puzzle in 7 seconds !!! comes complete with instructions. Ideal as a gift item !! SEE DEMO THE LINK........... https://www.youtube.com/watch?v=_2l-_shY-qg RS.200/- WITH POSTAGE.