Designed specifically for Leupold post-2004 riflescopes with 52mm objective lenses, our Alumina Flip-Back lens covers offer exceptional protection and functionality. Featuring powerful neodymium magnets, these lens covers securely hold shut to shield your optics from dust, debris and moisture. The triple O-ring seals enhance protection against the elements, ensuring your lenses remain clear and functional in all conditions. Constructed from durable 6061-T6 aircraft-grade aluminum, these lens covers are precision-machined for effortless operation. When opened, their low-profile design minimizes bulk while maximizing accessibility. The round objective and ocular models can be rotated to open in any direction, providing flexibility for your shooting style and preferences. With the Alumina Flip-Back lens covers, you can trust that your optics are well-protected and ready for action when you need them most.