Fotodiox Pro 130mm 2-Stop (ND4) Graduated Neutral Density Grey Filter fits Cokin X-Pro (XL) Series Filter Holder 130mm x 173mm Filter for Cokin X-Pro (XL) Series Filter Holder High Quality, Super Thick, Multi-Coated Graduated Filter Premium Grade Optical Polycarbonate Filter (CR39) Includes Clear Protective Storage Pouch 24 Month Manufacturer Warranty