The best way to fight the COVID-19 is to keep your hands clean. We always need to use a smartphone from day to day. What about if the phones are all wearing masks? We can not find any mobile phone masks in the market, but mobile phone cases with mask patterns are now available. Although it does not have the function of preventing germs, it can always remind me of the essence of wearing a good mask. It is a bit sweet! This "mask case" comes in pink and blue. It can be used as a couple.