Formatt Hitech FC4x5NDVG0.6 Firecrest ND Soft Edge ND Vertical Grad 0.6 Firecrest ND Soft Grad reduces light by 2 stops Neutral across all spectrums, including UV, visible, and infrared 4mm thick Schott Superwite glass The Fire crest ND Coating is sandwiched for ruggedness and scratch protection Made in the UK