Sparklers are handheld fireworks that produce bright, sparkling effects when ignited. They consist of a metal wire coated with a mixture of combustible materials, which burn slowly to create a dazzling display. Sparklers are often used during celebrations like New Year's Eve, Independence Day, and weddings. When lit, sparklers emit colorful sparks and can burn for several seconds, allowing users to wave them around to create patterns in the air. While they are popular for their visual appeal, it is important to handle sparklers safely, as they can reach high temperatures and pose a fire hazard if not used responsibly.