The NiSi Filters 150mm System Starter Kit is the ultimate starter kit for landscape or seascape photographers. It's perfect for anyone who wants to create long exposure images and use ND filters & GND filters and can be combined with any NiSi 150mm holders. The NiSi Filters 150mm System Starter Kit also represents a great saving than buying all the included items separately. 1 x NiSi 150x150mm Nano IR Neutral Density filter ND64 (1.8) 6 Stop 1 x NiSi 150x150mm Nano IR Neutral Density filter ND1000 (3.0) 10 Stop 1 x NiSi 150x170mm Nano IR Soft Graduated Neutral Density Filter ND8 (0.9) 3 Stop 1 x NiSi Hard Case for Nisi 150x150mm or 150x170mm Filter Size 150x150mm, 150x170mm