Features: l Optical glass, precision grinding and polishing, high-definition imaging l Double-sided multi-layer nano-coating process, restore the true colour l Double-sided waterproof, oil-proof, for your lens protection l Aviation aluminium frame material, logo engraved by laser engraving will not fade l CPL/NDPL adjustable, by rotating the gear can adjust the light, choose the right luminosity for shooting l Installation will not damage the original lens, change the filter at any time, do not let you miss the wonderful moment Specification: l Material: Aluminium (frame) + Optical glass l Color: Black l Size: as Shown l Applicable Model: for Mini 4 Pro l Quantity: 1 PCS Types (Optional): l UV l CPL l ND8 l ND16 l ND32 l ND64 l ND16/UV/CPL l ND8/16/32/64 l UV/CPL/ND8/16/32/64 l CPL+ND8/16/32/64/128PL Package: l 1x Filter Or l 3x Filters Or l 4x Filters Or l 6x Filters