Face Mask Strap Adjuster
4 stage dual side adjustable face mask adjuster, also called surgical mask strap adjuster.
Face mask ear rope adjuster, also called rope extension adjust buckle, surgical mask strap adjuster, ear rope extender, or anti-earache mask fixed strap adjuster. 4 stage dual side adjustable face mask adjuster with 4 slots on each end, allows us to adjust the tightness by extending or shortening earrope if the length doesn't fit, which can effectively reduce the pressure on the ear and prevent the pain while wearing face mask for a long time. The adjuster is produced by soft plastic, thus it is durable, flexible, and comfortable to use, furthermore, the non-slip design can prevent the mask from slipping off, makes it work perfectly with most masks available on market.