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The Tinhao Clip-On is a flip-up sunglass lens that clips onto existing prescription frames. Its photochromic polarized lens darkens outdoors and clears indoors, with UV400 protection and a scratch-resistant coating. At 8.9 g it is very light, and soft rubber clips are meant to grip frames without scratching them. It suits glasses wearers who want one pair to cover driving, fishing, golf and everyday glare, though the four lens tints are fashion and contrast choices rather than prescription lenses.
Availability unknown
Lowest price we've seen: $12.99 on Nov 5 at Walmart. Tracked across 1 store since Nov 5.
Ratings are positive overall, with buyers mainly noting the light weight and the convenience of flipping the lenses up. Some mention fit limits on larger frames.
These clip-on sunglasses attach to prescription glasses. The lenses are photochromic, so they darken outdoors and clear indoors as the light changes. They are also polarized to reduce glare.
The lens has 5 layers. It combines UV400 protection that blocks 99% of harmful rays, polarization, and a scratch-resistant coating. Soft rubber clips hold the frame without scratching it. The lenses flip up 180° so you can switch between sunglasses and regular glasses without removing the clip-on.
They fit most prescription glasses up to 5.16 in × 2 in. They can be used for driving, outdoor sports, and beach or water activities.

