Glassesshop Grover Rectangle clip-on eyeglasses are made of durable and lightweight ultem material. Coming with Black and Tortoise.They are only 11.7g. Are you looking for a pair of eyewear having the function of both eyeglasses and sunglasses? This one is the right choice because of the polarized magnetic clip-on and spring hinges. This eyeglasses are the season’s hottest item suitable for most of men.