Thanks to a transparent lid, you can see at a glance which filter is stored in it. A shock-absorbing foam insert prevents slipping and rattling. Attached filters should be protected just like the front lens of a lens and provided with a protective cap. As an alternative to the B+W single filter boxes, B+W filter cases are available with snap fasteners and transparent compartments inside for convenient, quick access and secure positioning of the filters. Folded, the case also fits into a front compartment of the photo bag for quick and easy removal. Suitable for filter sizes up to Ø 82 (max. 4 filters).