Thermal detonators are fictional explosive devices commonly found in the Star Wars universe. They are small, spherical grenades that can be activated to create a powerful explosion, capable of causing significant damage to structures and enemies. The detonators are often depicted as being used by bounty hunters and soldiers. These devices typically have a timer or remote activation feature, allowing users to control when the explosion occurs. In the Star Wars films, characters like Boba Fett and Leia Organa are seen using thermal detonators in various combat situations, showcasing their effectiveness in battles.