• 1. Dual-Tone Oval Frame Design：Featuring seven vibrant color combinations， this oval-shaped alloy frame (47mm lens width) with textured acetate temples showcases 3D faceted edges for seamless transitions between professional and casual styles.
• 2. Deformation-Resistant Alloy Structure：Crafted with high-hardness nickel alloy (Vickers hardness HV220) and fracture-resistant reinforcement ribs in temples. Note: Adjustments require professional tools
• 3. Standard Face Fit Guidelines：Ideal for head circumferences 53-58cm (47mm lens/26mm bridge/150mm temples). Not recommended for large faces，Metal framed glasses are not easy to adjust. Check the size of the glasses carefully before buying to avoid buying inappropriate prescription frames.
• 4. CLEAR VISION: men round nerd thick glasses frames are removable and replaceable with prescription lenses so you can change them to suit your actual needs hd lenses provide you with natural clear vision
• Hassle-Free Service Assurance：Includes a premium magnetic leather snap-case (see product images) and scratch-resistant lens pouch. Critical: Verify frame dimensions (47mm/26mm/150mm) against your current eyewear using our sizing guide (see images) to ensure fit. 30-day free exchange service for sizing issues (original packaging required).