Compatible with post-2004 riflescopes featuring 40mm objective lenses, these lens covers by Leupold are the epitome of functionality and durability. The Alumina® Flip-Back™ covers set the standard for premium scope protection with strong neodymium magnets that hold them firmly shut, ensuring your lenses stay safe from the elements. Triple O-ring seals enhance this protection, making these covers a reliable partner in any outdoor environment. Crafted from 6061-T6 aircraft-grade aluminum, these covers are built to last. The precision machining ensures effortless operation and an unobtrusive profile when open. Furthermore, the unique design of the round objective and ocular models allows you to rotate them to open in any direction, offering versatility and convenience. Designed for Leupold scopes manufactured after 2004, these lens covers are the ultimate choice for scope protection and ease of use.