This is a case with an attachment that allows you to attach a 52mm filter to an iPhone 15 Pro Max. In addition to the case and attachment, a CPL filter and a variable ND filter (ND2-400) are included. You can also purchase this just to use the camera filters. - 52mm CPL filter - 52mm ND filter (2-400) There is some paint peeling on the magnetic attachment, so it is listed as slightly dirty, but there are no particular problems with use, and it is in good condition. Recommended for those who want to take本格的な (本格的な - authentic/full-fledged) photos with their iPhone. Case Material: Aluminum / PC / PU Leather / Magnet