You're going out for a costume party and need something to complete your looks? Adria Crazy Color Black contact lenses will do that job perfectly. Thanks to these novelty contacts your eyes will become completely black making you look just the way you want to. These black contact lenses are a great costume accessory but can also be used on a daily basis by people who have naturally black eyes and would only like to enhance their eye color. Adria Crazy Color Black can be worn for 4-6 months after they have been open.