คุณลักษณะ

• It is an ecological power unit that does not use batteries or motors.
• Rotate the charge wheel to turn the metal flywheel inside the unit, using the inertia that keeps the flywheel turning as power.
• The gearbox is a transparent part made of mechanical ABS resin with a clear view inside.
• Uses a 3 mm hexagonal shaft that is easy to apply to crafting.