This is the fog bar for glasses. This is specially designed for people who wear glasses. It can prevent the glasses from blurring due to the warm air in the mouth when wearing masks. You can see clearly even if you wear glasses in winter. It changes the direction of the air flow, causing the hot air to move around. The anti fog clip is easy to use, put the anti fog clip hole face down on the nose, and then put on the mask, which can effectively prevent the glasses from blurring due to the hot air breathing when wearing the mask in cold weather. This mask bracket is made of pure silica gel, environmental protection and safety. It is not easy to break. It is soft, light and reusable. It can be used safely by adults and children. It is a kind of epidemic prevention artifact with a soft fit on the nose.Pay attention to keep the product close to the bridge of nose when using.