The Eyelevel R10 Retainer is a high-quality and durable eyewear accessory designed to keep your glasses secure and in place. With a sleek design and adjustable fit, this retainer is perfect for anyone looking to prevent their glasses from slipping or falling off during any activity. Made from premium materials and available in a range of colors, the Eyelevel R10 Retainer is a must-have for anyone who wants to keep their glasses safe and secure.