Blix - rack and pinion rack and pinion is one of the easiest ways to convert rotary motion ( which is produced by motor) into linear motion. As you the 6 incredible models from this set, you will see how this super mechanism is used by a fork lift to lift up cargo, by a garage to open and close the gate , by a machine to set the position of the bed, by a car to steer the wheels and more! Push the button, watch it move and experience with the blix rack and pinion. Skills creativity dexterity knowledge reasoning age : 8-99 years category : blix types : building & constructions (bx-06006)