How to use four Lego rulers and rollers and some other Legos to make a skillful hair hole product?

To use four Lego rulers and other Lego bricks to make a handmade hair hole product, you can follow the following steps:

1. Building the base of the launcher: Build a stable base with Lego blocks to ensure that it can support the structure and strength of the launcher.

2. Install four Lego ruler rollers: place four Lego ruler rollers (wheels) on the base to form a stable bottom.

3. Making a launching mechanism: Build a launching mechanism with other Lego bricks, which can be a spring or a rubber belt to store and release energy.

4. Connect the launching mechanism with the Lego ruler: Connect the launching mechanism with the Lego ruler to ensure that the Lego ruler can move when releasing energy.

5. Adjustment and test: Adjust the position and strength of the launching mechanism and Lego ruler as needed to test whether the launcher can be launched smoothly.

6. Add details: According to personal preference, you can add some decorations and details to the transmitter to make it more interesting and beautiful.