Every time you buy more than 3,000 yuan of masks, you will get 1 box of 5 government-approved King Wolf antigen test reagents. Buy more and get more! So happy to be able to go back to school! Parents, remember to put more masks and schoolbags for children! Children are lively and active, and the masks they wear are not only easy to become wet due to sweating, but also cause various inestimable losses. Parents, remember to put a few new masks in the schoolbag for the children, just in case. Dr.Mask disposable masks for children and middle-aged children, made in Hong Kong, individually packaged, beautiful and high-quality.