Dear Customer, w are sorry to hear that. Metal is the most widely used material to make eyeglass frames. Many people opt for metal frames because they are attractive and for their malleability and resistance to corrosion. Moreover, you can check our frame materials here for more information. The lifespan of eyeglasses not only depends on the quality of materials but also maintenance. By the way, there are several helpful tips for glasses maintenance. Please click here to see the details. Also, we understand that choosing a perfect frame size online can be tough sometimes so we suggest that you could please check this link https://www.firmoo.com/help-p-1.shtml for reference. Please don't worry, we offer a 30-day return&exchange in which unsatisfied glasses can be exchanged or refunded within 30 days of receiving. Allow us to further check on this and our CSR will reach out to you via email (within 24 hours during weekdays and 48 hours when weekends). Please check your inbox or spam mail. Please stay safe and healthy!