Solar Shield 54 Rec 1 Full Frame Gray Polarized Clip on Sunglasses

SOLAR SHIELD Full frame clip on Sunglasses Polarized Solar Shield CLIPS over your regular GLASSES. 54 Rec 1 Gray Polarized lenses block glare. Blocks 100% UVA/UVB. How can I be sure that I am ordering the correct clip ons ? There are two ways to determine which clip ons will best fit your glasses:
1) The first and the most accurate method " Our recommended method ", is to simply take the following measurements directly off of your glasses,
A)The shape of your Frame
B) Frame Height = mm (Note 1 inch = 25.4 mm)
C) Frame Width = mm (Note 1 inch = 25.4 mm)
D) Overall Frame width = mm (Note 1 inch = 25.4 mm)
Please Note: If your exact dimensions falls between two different size clip ons, we recommend that you pick the larger of the two.
Lenses exceed ANSI Z80.3-2001 strictest UV blocking requirements.
These have a limited lifetime guarantee from the manufacturer, Dioptics Inc. The packaging is actually a plastic box to store them in.
Solarshield Clip X-Span.