1Made of plastic, solid and durable, high quality and great toughness 2Ultra thin and super light, reduce pressure on the nose bridge and uneasy to creep down 3Easy to store and carry, the glass box as portable as a card, fashion and exquisite in the wallet. And the concise design looks very elegant 4Without the legs of glass, it is more convenient to use, and it release the pressure of ear, a very creative design 5Available in 5 kinds of glasses degrees, meeting different needs