Haida 77mm Slim PROII Neutral Density Multi-Coated ND Filter Kit 8X 64x 1000x Haida Slim PROII Multi-Coated Neutral Density ND Three Filter Set ND1000, ND64, ND8 & 77mm Cap Slim filters to avoid Vignetting Double threaded to allow stacking / Lens Cap / Hood Extremely resistant to dirt, scratches and water.