•【High-Definition Optical Glass】 Made of premium optical glass with low refractive index, ensuring no impact on image quality while capturing wonderful moments. •【Easy-to-Clean Surface】 Double-sided coating makes the filter surface easier to clean, maintaining optimal performance. •【Lightweight Design】 Weighing only 15g, this compact filter set is perfect for travel, adding minimal burden to your gear. •【Water-Resistant Protection】 A rubber ring inside the frame effectively isolates water droplets and moisture, safeguarding your lens in underwater, rainy, and humid environments. •【Durable Construction】 Aviation-grade aluminum frame with laser-engraved matte black finish offers strong corrosion resistance, withstanding humidity and oxidation. Specifications: •Material: Aluminum alloy (frame) + optical glass •Net weight (1 Set): 15g •Product dimensions: 1.38 x 1.38 x 2.63in (3.53 x 3.53 x 6.7cm) •Filter types: CPL + ND8/16/32 Compatible with: •Insta360 Ace Pro 2 Package included: •4 x Filter •1 x Wrench