Come and see our amazing products. It is made from high grade silicone, which is nontoxic, odourless, soft and flexible.You just insert the mask lanyard into the silicone sleeve from the opening.Round line and flat line can be used. Suitable for mouth mask, such as, disposable mask, dustproof mask, cotton mask, KN95 mask and more.The shape of the ear protection soft silicone sleeve matches the auricle and fits the ear. Simply rinse with water for next use. Pls confirm with us about the packing info, stock color and exact production time before placing your order