Model number 67mm MCUV+CPL+ND1000+Adapter Ring Magnetic 4 in 1 Lens Filter Kit * ?Kit Includes?This filter kit includes MCUV+CPL+Neutral Denstiy ND1000+ Magnetic Adapter Ring + Filter Pouch. * ?1 Second Swap & Install? This magnetic lens filter kit could finish installed in less than one second compared with conventional thread filter. Avoided frozen hands in cold weather and never miss any wonderful moment. Combination Way 1?Magnetic Adapter Ring + CPL+ ND1000. Combination Way 2; MCUV+CPL+ND1000. * ?28 Multi-Layer Coatings? All filters are made of import AGC High Definition Premium Optical glass, double-side multicoated, no chromatic aberration (color shift) hydrophobic ,scratch resistant , oil proof. Provides you a perfect photography experience, protecting your lens from all round. * ?Ultra Slim Frame?1.9mm-3.5mm ultra slim frame ensures no vignetting and dark corner on 16mm wide-angle focal length. CNC non-slip system frame , easy for install and remove. * ?Filters Function?Circular Polarizer (CPL) filter helps reduces glare from non-metallic surface enhance color saturation & contrast. ND1000 filter. ND1000 (10 f-stops) filter helps shoot stunning mesmerizing long exposure. MCUV protection filter with 99.6% transmittance, effectively reduces the reflection came from both the ground and filter itself, ensuring the true color of photos and protect lenses.