The glass is coated with a layer that filters up to 99% of UV rays.

Smoke-colored glass, mirror, 7-color mirror help reduce glare for the eyes when walking during the day, not using it at night.

Yellow glasses used at night help increase color contrast, make observation easier. When traveling during the day, yellow glasses give more prominent colors than clear glasses.

Clear stained glass can be used both night and day, simply clear color is used to block the wind, dust and insects flying into the eyes.