Glass Strengthening Systems has a huge network in more than 40 countries in the world including the United States and Canada. The dealers of Glass Strengthening Systems are all certified and authorized to market the best security products of the industry which can both be used in existing (old) and new windows. GSS products help in preventing injuries to your family, friends and other valuables which could be caused by bad weather, theft, blasts and small arm fire. At the same time, GSS makes it very clear that Glass Strengthening Systems are not bullet or break-in or blast proof as there are no such products in the whole industry. We assure only added protection to objects minimizing the effect of bullets. A third party testing established that Glass Strengthening Systems SL14 is capable of resisting a bullet released by .38 Caliber or 9mm FMJ or.357. All that we assure you is the security of your family or business by limiting the risk around them.