Scubaspec Mask Prescription Insert 137 Ebp - Black Insert

The 137 ebp scuba spec, or snorkel spec, is a prescription spectacle insert specifically designed for the visually deficient diver. The 137 ebp scuba spec attaches to the mask faceplate via a suction cup and can be easily inserted or removed from the mask at the diver’s discretion. The same prescription powers used in the diver’s habitually worn glasses can be used in the scuba spec insert single or bifocal vision . For instructions, click here: a: distance across center of lens 42.6 Mm 1.68 In b: height from top to bottom of lens 47.7 Mm 1.88 In ed: diagonal measurement of lens 51 mm 2 in dbl: length of bridge 30 mm 1.18 In ht: height of frame including anchor bracket 50 mm 1.97 In l: length of frame 120 mm 4.72 In c: diameter of suction cup 32 mm 1.26 In circ: circumference of lens 148.3 Mm 5.83 In wt: weight of insert without lenses 5.7 G 0.2 Oz

The 137 ebp scuba spec, or snorkel spec, is a prescription spectacle insert specifically designed for the visually deficient diver. The 137 ebp scuba spec