Mefferts Gearshift Brainteaser Puzzle The puzzle pulls apart in 3 directions by pulling on the 2 halves. Be sure you hear 2 clicks. Spin the gears to change the colors on each side then push back together. Solve by getting the puzzle into a square shape and creating a solid color on all 6 sides. A challenging brain teaser puzzle for adults and children alike! Display on your nightstand, shelf, or living room as a decorative conversation piece. The perfect gift for the puzzle enthusiast in your life!