Energy Saving: Helps prevent drafts, odors, and debris from entering your home through your fireplace or wood stove. In the winter, fireplace registers stop heat loss, keeping you warm and reducing your heating bills. In the summer, it can prevent cold air loss, block outside heat, and the air conditioner uses less energy. Ten Built-in Powerful Magnets: There are ten built-in powerful magnets around the fireplace cover, each magnet has a suction force of up to 1.2T, which can be strongly adsorbed around the iron frame of your fireplace without falling off, and the black color makes it blend in with the fireplace and you don't even pay attention to it because the magnets are not heat resistant. Therefore, do not leave the magnet in a high temperature environment for a long time, otherwise the magnet will reduce its magnetic properties. High quality: Our magnetic fireplace cover is made of high-quality thickened flame-retardant Oxford cloth, filled with high-quality sponge, split seams