Blasting caps are small explosive devices used to initiate larger explosives, such as dynamite. They contain a sensitive explosive material that detonates when triggered, often by an electric current or a shock wave. Blasting caps are essential in construction, mining, and demolition, where controlled explosions are necessary. These devices are typically made of metal or plastic and are designed to be safe to handle until they are activated. Proper safety measures are crucial when using blasting caps, as they can be dangerous if mishandled. They are regulated by laws to ensure safe storage and use in various industries.