The NUANCES Extreme kit includes 3 Graduated Soft filters with 2, 3 and 4 f.stops max density. NUANCES Extreme filters are made of a highly resistant mineral glass, able to resist accidental fall and introducing innovative technology.A ne.w coating process ensures an uniform density and a nano metallic alloy is applied on both sides of a highly resistant tempered glass, resulting in a stunning neutrality. Nuances Extreme Soft Grade ND4,ND8 and ND16 allow up to 2, 3 and 4 f.stops of light compensation with a soft transition from the top of the filter. Round corners and 2,3mm thickness makes Nuances Extreme filters easier to insert in extreme conditions. COKIN recommends the use of EVO filter-Holder to ensure an efficient light-leaks protection.Specs:- Filter Type: Graduated ND- Graduation Type: Soft Edge- Graduation Direction: Vertical- Density: 0.6 (2 Stops), 0.9 (3 Stops), 1.2 (4 Stops)- Shape: Rectangle- Rectangular Size: 13cm x 17cm- Cokin Compatibility: Cokin X-Pro- Filter Thickness: 2.3 mm- Filter Material: Glass- Coatings: Multi-CoatingIn the Box:- 3x NUANCES Extreme Graduated filters with individual pouch- 1x Microfiber Cloth- 1x Light-Blocking Gasket