The world's most compact and concealed mounting clip that also opens upwards! Made with Special Magnesium Alloy, it's like you're wearing nothing! Easily turn your regular prescription glasses into premium prescription New Polarized Clip On Flip Up Sunglasses! zOUR GUARANTEE We are confident that we offer some of the best products on the market. Therefore, we provide a 30-day guarantee. We will make every effort to ensure that you are completely satisfied with your purchase. Online shopping can seem daunting. We want you to know that there is absolutely zero risk of purchasing something. We won't make it difficult if you don't love it. We offer email and ticket support 24 hours a day, 7 days a week. If you require assistance, please contact us. Please contact customer service if you have any problems with your purchase.