This waterproof multi-layer padded case is designed to fit the Opticron MM3 80 and MM4 77/45 Fieldscopes. It provides reliable protection for your instrument during storage, transport, and while in use on a tripod. The case features a foldable flap for easy access to the focus wheel, a zippered prism housing section for improved eyepiece changes, and removable end caps that pin back onto the case body. An adjustable carry strap with a shoulder pad offers added convenience and comfort.