Cokin Z-Pro U961 Pro Gradual ND/Blue/Tobacco Filter Kit Filters from the Z Series are suitable for professional use and can be used in combination with lenses up to 96mm. The holder can accommodate up to three filters at the same time and can be used in various ways. The kit includes: BZ-100 Z-Pro filter holder Z121L Gradual Grey G2 Light (ND2) Z123L Gradual Blue B2 Light Z125S Gradual Tobacco T2 Light Filter Cover Attention: Adapter ring is not included.