Larger than I expected and unused, brand new. This is a lens filter case sold on Amazon for around 3000 yen. It supports up to 95mm, so it fits most filters. Reference product on Amazon: https://amzn.asia/d/aYh4YiD [Stores 10 Filters] JJC Filter Case Filter Pouch, Supports up to 95mm, Holds 10 Filters, Compatible with 25mm 37mm 39mm 40.5mm 43mm 46mm 49mm 52mm 55mm 58mm 62mm 67mm 72mm 77mm 82mm 95mm UV CPL ND Filters, Abrasion-Resistant, Impact-Resistant [Large Capacity] Can store 10 UV ND CPL filters simultaneously, compatible with filters up to 95mm in diameter. [Impact-Resistant, Dustproof, Moisture-Proof] Made of high-quality, environmentally friendly materials, it is dustproof, impact-resistant, and moisture-proof. [Filter Protection] The outer shell of the storage box is made of high-quality EVA plastic with reinforced ribs, providing good abrasion resistance and drop resistance. The lining material is made of soft fiber cloth to prevent scratches on the filters. [Easy to Open and Close] The zipper opening design is convenient for opening and closing, effectively preventing filters from accidentally scattering. [Easy to Carry] Small and square, it's easy to carry in a camera bag. Comes with a cleaning cloth for easy filter wiping.