Force 12 high impact wind screen features advanced window protection from hurricane damage. Constructed of 100% polypropylene basket woven fabric. Rated for a category 5 Hurricane, Force 12 wind screen can take a 120-mile an hour wind on one side and turn it into a 3-mile an hour breeze on the other side. This incredible storm safety product is lightweight, easy to install, easy to store, and reusable even after debris impact. Infinite span widths are available and this durable fabric hurricane protection has a significant degree of translucence, which helps prevent that boxed in feeling when the storm protection material is in place outside windows and doors.