Lunik Rocket crackers are a type of fireworks designed to resemble real rockets, launching high into the sky before bursting with colorful sparks and surprising sound effects. They typically ascend about 20 to 30 feet, creating a visual display of bright colors and a trail of golden sparks, making them a favorite for celebrations like Diwali. To use them, the rocket is inserted into a bottle or pot to ensure it flies in the correct upward direction, and then lit with a long match or agarbatti