SPLAKS Clip-on Flip Up Polarized Sunglasses Rectangle Over Prescription Glasses for Men Women Night Driving Glasses (2 Yellow)

Compact Flip-up Clip-on Sunglasses:
★You can flip it up when driving into a tunnel or when temporarily not requiring shades.
★You can flip it down when you need sunglasses at any time.

HOW TO TELL IF SUNGLASSES ARE POLARIZED
1.Turn your computer screen to its brightest setting. Most electronics have the same anti-glare technology as polarized glasses. You'll be able to test the polarization by looking at the screen
2.Put on your sunglasses. Once you're in front of the computer, just put the sunglasses on like you'd normally wear them. Make sure you're sitting directly in front of the screen.
3.Tilt your head 60 degrees to the left or right. If the sunglasses are polarized, the screen will appear to turn black due to the anti-glare properties cancelling each other out. The test will be prominent when you tilt to 90 degree

Package Includes
2* clip on sunglasses(Black or Brown or Blue Mirrored or Dark Green Lens (Day Using) or/and Yellow Lens(Night Using))
1* cleaning cloth
1* high quality box

Attention
1.The only yellow lens clip ons are suitable for night driving, rainy, cloudy
2.Others are suitable for day time activities