It does the job. We needed a screen for our sliding glass patio door, but most aren't tall enough. This one fit the size fairly closely, and for the price, it wasn't much of a risk. The screen itself keeps bugs out, but the magnets are fairly weak, so we have to keep the glass patio door closed about an inch past the magnets so the wind doesn't blow them apart. It doesn't take much, so we have to keep it half closed even on calm days. However, it's still better than nothing.