Description: 1. Designed specifically for the Insta360 GO Ultra, a wide range of filters are available, including 1/4" black soft filter, ND neutral density filter, ND/PL (adjustable) neutral density filter, and CPL polarizing filter, meeting various shooting needs. 2. Crafted from an aircraft-grade aluminum alloy frame and imported German optical glass lenses, these filters are CNC machined for precision, resulting in a lightweight and durability design, weighing only 3g each. 3. Multi-layer coating technology delivers high light transmittance and brightness, reproducing true colors and enhancing image clarity and professionalism. 4. Some filters (such as CPL and ND/PL) are angle-adjustable, allowing for flexible adaptation to varying light and polarization requirements. 5. Comes with a dedicated portable storage case for easy portability. Available in single, three-, four-, and six-pack sizes. Color: Black Material: Aluminum frame + optical glass lens Packaging dimensions: Single: 64*44*15mm, Three-pack: 72*72*17mm, Six-pack: 104*99*25mm Compatible models: For Insta360 GO Ultra