Description: Experience superior eye protection with these men's round polarized sunglasses featuring advanced ND filter technology. The built-in ND filter blocks dazzling sunlight and indoor blue light, reducing eye fatigue for clear vision. Enhance your style with the timeless round design, perfect for both casual and formal occasions. Customize your vision with the innovative Infinity Dimming feature, which adjusts the lens darkness for optimal comfort in any lighting condition. These durable sunglasses are multi-functional, suitable for outdoor adventures, daily wear, and professional settings. Enjoy all-day comfort with adjustable features that fit all head sizes, ensuring a secure and comfortable wearing experience wherever you go. Item Name: Sunglasses Material: Stainless Steel, Aluminum Alloy Features: 1-9 Gear Adjustable, ND Filter, UV Protection Size Details: A(Classic): Lens Frame Diameter: 5.85cm/2.3\"