#137EBP Scuba Spec Optical Lens Insert for Dive and Snorkeling Masks.

The #137EBP Scuba Spec is a spectacle kit (i.e., eyeglasses, eyewear) designed for use in all single lens dive masks and full-face snorkeling masks. The #137EBP Scuba Spec securely attaches to the inner surface of the dive mask's faceplate using a suction cup. The nylon spectacle frame can accommodate any optical lens power: single vision,  bifocal vision, or readers (magnifiers). If your eye prescription changes, just replace the lenses. If you purchase a new dive mask or use multiple masks, the #137EBP Scuba Spec insert can be easily transferred between masks. The #137EBP Scuba Spec can't be used in a dive mask with two separate eye pieces. Optical lenses are not included with the #137EBP Scuba Spec. Lenses can be purchased from www.spectacle-inserts.com/optical-lenses or your local optician, optometrist, or ophthalmologist.