DSYJ 1 Pack Window Breaker Emergency Escape Tool Life Saving Survival Kit Super hardness: high hardened Steel double hammer heads to break glass with one punch Multipurpose: use for window breaker, seatbelt cutter and some other emergency situations Reasonable design: specific anti-skid designed, with protective bracket Reflective sheeting: with Advanced reflective material, you can find them at once Essential tool: it is not Big, but can offer help when you are in need