Material Type : Zinc Alloy Item Type : Key Rings Special Features : Window breaker Cut the seat belt : Pull out the escape device quickly from the key chain,then pull out the buckle,align the blade to the seat belt,cut it off quickly and get out of the emergency The car outside the emergency self-help,the escape device placed in the corner of the window,press the escape device to the end,heard the bang,broken the glass,emergency escape Package : 1pcs safety hammer with keychain Noted : 1. Pictures are for reference only,All in kind prevail ; 2. Plz allow 0.5 ~ 2 mm diffeence due to the manual meassurement 3.Photo color might be a little different from the actual product due to color display of different monitors