Designed for Kids and Teens – These polarized clip-on sunglasses are specially made for children, big kids, and teenagers who wear glasses. The size is proportioned to fit younger users, smaller than standard adult clip-ons. They are compatible with most eyeglass frames, including metal, plastic, rimless, half-rim, and full-rim frames.Product Size – Lens width: 48mm (1.89 inches); Lens height: 45mm (1.77 inches); Bridge width: 17mm (0.67 inches); Frame width: 132mm (5.31 inches). We recommend measuring your child's eyeglass frame before purchasing to ensure a proper fit. If uncertain about sizing, please refer to the included size guide image.Classic Style Polarized & UV400 Protection – The polarized lenses reduce glare from reflected sunlight, enhance visual clarity, restore true color perception, and block scattered light. They provide UV400 protection to shield young eyes from harmful ultraviolet rays and support long-term eye health.High-Quality Materials – These clip-on sunglasses feature premium polarized lenses and durable metal clips with soft rubber tips to prevent scratches on prescription lenses. The sturdy clip design helps keep the sunglasses securely in place during movement, while the lightweight construction ensures comfort with no nose pressure.Practical and Convenient – Easy to attach—simply clip onto existing eyeglasses. Ideal for a variety of outdoor activities and everyday use, including riding, running, cycling, fishing, traveling, skiing, and climbing.