The 4" Inch pipe fancy crackers is a type of Night Crackers that comes under the category of Night Aerial Attractions. It has a fuse on the bottom and when it is ignited it bursts with a sparkling sound and a fireball will go up in the sky up to 10 meters. According to the labeling descriptions, Two Fireballs of different Colors will come out and the fireball bursts with different color functions and fills the sky with Wonderful sparkles.