Our Safe-T-Punch™. Emergency Window Exit Devices were designed and are manufactured to be fully compliant with the United Nations ECE R107 regulations for M2 and M3 class passenger-carrying vehicles. Safe-T-Punch™ can be operated by a single-handed strike to reliably break Emergency Exit windows and afford passengers a rapid escape from a stricken vehicle. The installation of a Safe-T-Punch™ device on an Emergency Exit window is as easy as clean, peel and stick. Safe-T-Punch™ Break Glass - Save Lives