Window Security Film increases the strength of glass in the home or office. While untreated glass will easily shatter with disastrous results, Window Security Film holds the broken glass together as one piece, reducing the risk of injury and keeping potential intruders outside where they belong! The safety of your family and staff is very important so Window Security Film is a wise investment. For your peace of mind, we only use Window Security Films sourced from the most trusted manufactures, so you get the best products along with a lifetime warranty.