BUST A CAP - STINGER LED & POLY STINGERS. NOTE: ONLY 1 REMAINS AT THIS PRICE. If you carry the Poly Stinger or the Stinger LED, you know the size of these flashlights vary depending on the model. There is no way you can break a window with these flashlights without causing damage to your expensive light or injuring someone from flying glass. Attaching Bust-A-Cap to your flashlight will break glass and not damage your equipment. NOTE: Please remove the O-rings from the old cap and put on your new BUST-A-CAP to ensure that your light remains watertight.