Feature:1. Suitable Scene: Spitfire tracer flash unit is suitable for 11mm cw, 14mm ccw, 12mm cw, 18mm, and 19mm direct plug. Please confirm whether your model is applicable before buying.2. Multiple Luminous Colour: The fluorescent effect tracer unit has a total of 9 luminous colors, allowing for a more colorful light ballistic fluorescent spitfire effect.3. Low Battery Auto Shut Off: The spitfire tracer flash unit has a safety design that automatically shuts off when the battery is low.4. Highly Visual: The tracer unit presents a real time visualisation of the laser trajectory through the spitfire fluorescence effect, allowing the player to see the trajectory of the laser more clearly.5. Lightweight and Portable: The tracer unit is compact and portable, easy to load and unload, and easy to change at any time.Specification:Item Type: Tracer UnitMaterial: AluminiumArticle Number: EGW09Battery Capacity: 500mAhBattery Type: 3.7V lithium battery (shipped with internal battery)Fitment:Fit for 11mm cw, 14mm ccw, 12mm cw, 18mm, 19mm direct plug.Package List:1 x Host1 x Charging Cable1 x Instruction Manual1 x Red Thread1 x Black Thread 1 x Black Screw1 x White Thread1 x Wrench