1. Optical glass, precision grinding and polishing, high-definition imaging,
2. double-sided multi-layer nano-coating process, restore the true colour,
3. Double-sided waterproof, oil-proof, for your lens protection,
4. aviation aluminium frame material, logo engraved by laser engraving will not fade,
5. Installation will not damage the original lens, change the filter at any time, do not let you miss the wonderful moment.
