UCEC Tungsten Steel Tactical Pen with LED Flashlight for Glass Breaker and Self-Defense Mutifunctional Emergent Tool High hardness knife , Writing signature ,Easy to carry Creative Multifunction , Tungsten pen head , High brightness LED light source LED light source: Nichia ,Up Brightness: 60 lumens Pens Material: 6061-T6 Aviation Aluminum,Knife material: 5 chromium 18 ,Knife length: 28.6MM Packing list: elegant gift box