1. Optical glass, precision grinding and polishing, high-definition imaging;2. Double-sided multi-layer nano-coating technology is used to restore the true color,3. Double-sided oleophobic and waterproof, escorting your lens;4. The hook design can be tightly fixed on the lens, and it will not fall accidentally during flight;5. The original lens will not be damaged during installation, and the filter can be replaced at any time to prevent you from missing the wonderful momentsMain material: plastic (frame) + optical glassNet weight: 0.6g (single), 1.8g (3-piece set), 2.5g (4-piece set), 3.6g (6-piece set)Gross weight: 22g (single), 23.6g (3-piece set/4-piece set), 47.4g (6-piece set)Product size: 2.2*1.9*1.8cmPackaging size: 6.3*6.3*2cm (single/3-piece set/4-piece set), 8.1*8*2cm (6 sets)Packing list: filter x 1Packing method: boxedNotes:1. Only UV filters can transmit 98.5% of light, and CPL/ND filters cannot be expressed by transmittance;