This is a gear product that mimics the principle of lifting machinery. It is designed for children aged 5 and above to manually operate different gears, causing intermittent motion of the lifting weight and other gears. Through play, children can learn the basic principles of intermittent gear motion and the operating principle of a lifting machine. When operating, gears of different sizes and colors will rotate intermittently at different speeds and in different directions when acted on by force, causing the lifting weight to move up and down. Through this activity, children are inspired to think about the principles of how lifting machines work. It also helps develop their eye-hand coordination, control of large and small muscles, and hands-on and cognitive skills.

This toy material can also be used as part of designing displays on the walls in the science discovery room at kindergartens.