Unisex round acetate optical frames are made of solid hand-polished acetate, equipped with flexible spring hinges for stable fit and easy on-off wear. Featuring slim full-rim round silhouette and streamlined slender temples, it delivers minimalist retro intellectual style. The spring hinge adapts to different head widths without pinching temples, while lightweight frame structure reduces long-wearing fatigue. It fits prescription lenses perfectly, ideal for office work, reading, study and casual daily styling, a classic versatile eyewear choice for both men and women.