Solar Shield 50 Rec 13 Full Frame Gray Polarized Clip on Sunglasses

SOLAR SHIELD Sunglasses Polarized Solar Shield CLIPS over your regular GLASSES. 50 Rec 13 Polarized gray 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.