IST Optical Lens for M9 Saturn Dive Mask, Nearsighted Correction- Left Eye Diopter:-7 a split fin taps into

a split fin taps into that extra energy to reduce leg fatigue

3 extra tank

Tempered glass lenses

This makes IST’s Dolphin Tech dive torch kits your best value in premium quality underwater lighting

IST Optical Lens for M9 Saturn Dive Mask, Nearsighted Correction- Left Eye Diopter:-7 a split fin taps intoLeft and right lenses are not interchangeable right lens is available separately, item #OL4 R Corrective lens for use with IST M9 Saturn mask Offers diopter correction from 1. 0 to 8. 0 (in 0. 5 decrement) Tempered, scratch resistant glass Left and right lenses are NOT interchangeable Lenses are sold individually The IST Optical Lens for M9 Saturn Dive Mask, Nearsighted Correction lets nearsighted divers and snorkelers enjoy the benefits of ISTs