When the lights go out, turn to Elastic Precision's Tracer Rounds for night time fun. These glow-in-the-dark bands appear white in the light but glow green in the dark after exposure to sunlight or artificial light. Now you can watch as your bands streak towards your target even when the lights are low! Features: Includes 100 bands that glow in the dark. Expose bands to a light source to "charge" them. Works with our Model 9MM and 1911. Bands are made of phosphor impregnated silicone brand elastic percision new in packaging