Promate Gauge Reader Lenses for ScubaPro Spectra Masks (Pair) - OP261 GR buoyancy belt swim floats vest makes swivel function more flexible

makes swivel function more flexible and fits a wide range of face shapes

Skirt Seal Size: Width 3 3/4" x Height 3"

Face seal size: 4 1/2" width by  3 3/8" inches height

In addition to comfort

The 2-buttom Tec buckle features new patent pending Silicone Squeeze technology for superior functionality and durability

Promate Gauge Reader Lenses for ScubaPro Spectra Masks (Pair) - OP261 GR buoyancy belt swim floats vest makes swivel function more flexibleWe have in stock, every diopter from +1. 0 to +4. 0 in 0. 5 diopter increments for divers who want to be able to clearly read their gauges. Please do not mistake these pre cut lens as add on lens. They are pre ground and inserted into your mask in place of the standard flat lens. Please note that these lens are for those divers who only require lens for reading their gauges (similar to reading glasses). The top portion of the pre cut bifocal lens is