I have bought these elsewhere and they are VERY EASY to use. You know I'm in Florida which is usually where hurricanes hit and I have pre-cut wood for my windows and if any problems arise all it takes is to simply attach it to the wood sides, glue them in place and hoping I don't have a tornado - THEY don't bother protecting anything anywhere! I'm glad I bought them BEFORE having any problems - so should you. The packaging fits in your hand, so it's not a "big deal" like other products that are cumbersome and take up space.