This is a 2-in-1 filter that combines a variable ND filter and a polarizing filter. It's convenient because it can be attached and detached with magnets. ■ Product Name H&Y HD Evo-series ND3-1000+CPL Filter Kit ■ Filter Diameter 82mm (Set of filter body + magnetic lens adapter) ■ Features ・Light reduction adjustment with variable ND filter ・Adjustment of reflected light with polarizing filter (CPL) ・Supports two mounting methods: magnetic mode (magnetic attachment/detachment) and screw-in mode ■ Included Items ・Genuine magnetic adapter ring for 77-82mm conversion (bonus) ■ Condition ・Number of uses: About 3 times ・Filter body: Beautiful condition ・Plastic case: Some minor scratches ■ Reference Price Retail price: ¥24,700