Formatt Hitech 85x110mm (3.35"x4.33") Resin Neutral Density Hard Edge Grad 0.9 (3 Stops) for Formatt Hitech 85mm modular holder Cokin P System compatible with all 85mm holder systems 3 stop (0.9) hard edge graduated ND filter Hard edge filter ideal for longer lenses Made in the UK in rugged and durable CR39 resin Compatible with Formatt Hitech 85mm, Cokin P size and all other 85mm systems