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Passengers trapped in failed cars always find it rather hard to get out because the window glass is so strong. Taking down the safety belt is the first priority. ToughNib is the perfect life-saving gadget equipped at the end of ordinary safety belt. A diamond drill bit at the tip end is hard enough to crack the window. Passengers can always turn to it in emergency. It enhances the survival rate in traffic accidents.
Xuyang Guo Yang Zhou