Even novelty “gun shooter” crackers are explosive devices. They should only be used outdoors with ample space, away from people/pets/buildings.
Never place the “gun barrel” too close to face / body. Use an extended fuse / safety wick if possible.
Confirm legality of firing such novelty crackers in your locality (urban restrictions, noise regulations).
Many sellers treat such items as special / restricted, and may require in-person pickup or follow stricter shipping norms.
Use / novelty
Likely used for novelty / decorative / entertainment rather than as a major loud bomb
Safety / Distance
Risk of backfire or misfire; requires caution, person using must maintain a safe distance. Treat as explosive device despite novelty look.