QYORIGIN-Adjustable underwater anti-fog diving mask, breathable breathing mask with snorkel for swimming training

- Before use, rinse with clean water and dry.^
--Detach the headbands and place mask on the bottom of your face.^
-- Pull headbands tightly over your head and ensure mask^
--Fits comfortably and tightly by adjusting and ensuring mask^
--Check and ensure there are no gaps between your face and mask