G1 Window Breaker Escape Safety PenG1 Tactical Pen Solid Aluminum with Glass Breaker Escape Tool The G1 Window Breaker Escape Safety Pen is a no nonsense tactical pen built for everyday carry and emergency preparedness. Whether you're driving through a flood zone or just need a reliable pen that won't fall apart, the G1 delivers. Features: Solid aluminum body built to take a hit and keep writing Hardened tungsten glass breaker tip breaks tempered glass in one strike for emergency