This flipping up and clipping on designed glasses is polarizer. It can filter dazzle light and reduce eyes fatigue￡? which can effectively protect eyes and make driving safer. <br><br><strong>Features:</strong> <br>Polarizer lenses￡? filter dazzle light￡? reduce eyes fatigue. <br>Increase color saturation￡? enhanced stereoscopic clarity￡? make view clear in night. <br>Flipping up and clipping on design￡? convenient to change the lenses. <br>Ultra light￡? blackish green color￡? fashion and cool￡? suitable for both women and men. <br><br><strong>Specifications:</strong> <br>Color: Blackish green <br>Material: Plastic <br>Item size: 13.2 * 5.0 * 2.0cm / 5.2 * 2.0 * 0.8in (L * W * H) <br>Glasses weight: 9.0g / 0.3oz <br>Total size: 14.0 * 6.0 * 2.3cm / 5.5 * 2.4 * 0.9in (L * W * H) <br>Total weight: 10.0g / 0.4oz <br><br><strong>Note: </strong>This product is a glasses without spectacles frame. <br><br><strong>Package list:</strong> <br>1 * Night vision polarizer