Apollo Diopter Prescription Lens for Bio Metal Dive Mask - -6.5 to -9.0

High quality optical safety glass. Fits Bio Metal Pro, Bio Metal DUO and Bio Metal Masks Right and left lenses are interchangeable Prescription: from -6.5 down to -9.0 Care and Storage Instructions After use, wash in fresh water and allow to dry in a well ventilated area out of direct sunlight Store in a well ventilated dry area away from direct sunlight