The object of this brainteaser puzzle is simple - link together the different-sized cogs between the red gear and the yellow wheel. When the gear teeth interlock, you'll be able to turn the wheel and send the whole contraption spinning!
The set comes with 40 different puzzles with four levels of difficulty. Just slide the card under the clear grid, then place the red gear and yellow wheel as indicated. Each puzzle will show you the different gears you'll need to complete the puzzle. When you have got the puzzle right, the cogs will all move together!The puzzle set comes with 15 different sized, colourful gears, a playing tray, storage bag and 40 puzzle cards plus instructions. Made with durable plastic.Jollys says "Great as an activity to take on a journey, this puzzle is for single players, but is also fun for a pair of people to work at together."