This explains why certain window grills have a curve at the bottom.

Have you ever observed windows with bars that have a slight bulge or potbelly? You may have questioned what use those bars serve. Are they just decorative, or do they serve a real purpose? In this post, we’ll look at the interesting world of window bars and their mysterious potbellies. So, what are the bars on windows used for? Window bars, also known as security bars,