Pro-Optics Frame Grips / Hinge Rings by Pro-Optics in Eye Wear Accessories.
- Reduces Slipping
- Rubber hinged rings that provide flexible tension for a secure and comfortable fit.
- Simply slip a frame grip up each bow over the hinges. The resulting flexible tension will give a tight, comfortable fit.
- Pins and screws in these hinges cannot become loose or fall out.
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