This summertime giveaway is bound to catch their eye! Measuring 5 1/2" x 1 3/8" x 1 7/8", these Sun Fun Sunglasses change color in sunlight. Featuring PC lenses with UV 400 protection, these frosted frames change to blue, orange, magenta or yellow. The color intensifies with the strength of UV rays. A full color digital imprint is provided to accommodate even your most detailed artwork! Warning: Severe weather conditions may affect the mood change.