Streak visual ammunition features an exclusive patented technology that allows the shooter to visually see the projectiles path toward its target.Streak rounds do not generate heat so they are safe to use in environments where tracers are prohibited and can become a serious fire hazard.The results are game-changing in many aspects for the consumer, law enforcement, and military.For indoor range use and low light shooting.Specifications: 9mm/124 gr/total metal case (tmc)/50 per box/20 csCaliber: 9mmBullet Type: Total Metal Case (TMC)Bullet Weight: 124 grMuzzle Energy: 312 ft lbsMuzzle Velocity: 1065 fpsRounds Per Box: 50Boxes Per Case: 20Casing Material: BrassHazair: Yes