These bags are huge, and there's no good way to tighten them. I have a 7 ft. slim tree, and there's way too much extra room. If the bag had any structure or support, it would be okay, but it's just flimsy fabric. Everything inside is subject to breaking during the 11 months it's stored. I cut up some heavy cardboard boxes to make the inside of the ornaments bag more sturdy, and hopefully, that will help keep them a little more protected. The wreath bag is so ginormous that I could fit two 26-inch full wreaths inside. It's too big, though, and the wreaths will be awkwardly shaped by Christmastime. The bags' only real purpose will be keeping the stuff from getting too dusty.