Won the IF and Red Dot Awards | 【Import AGC Optical Glass】The filters in this kit are made by importing Japanese optical glass, both sides with nanometer coatings (total 36 layers), waterproof, scratch-resistant, oil proof. | 【ND Filters Function】ND filter expending the exposure time provides ND1000 (10 stops), ND64 (6 stops), and ND8 (3 stops) light reduction to achieve to slow shutter to be used to record movement in subjects such as waterfalls, providing a silky smooth effect to flowing water. The filter with protecting frame avoids filter for accidental fall damage(≤1.5m). | 【CPL Filters Function】Allow you to remove reflections from non-metallic surfaces, such as water and glass, also in color and contrast enhancement, especially for the blue sky and white clouds. | 【Original Design】Filter holder can set both CPL and nd1000 filters, ultra-slim frame, and a large diameter ensure no vignetting on a wide-angle lens and rear CPL design for convenient installation and removal. | 【Kit Includes 】Filter holder + ND8 filter +ND64 filter + ND1000 filter+ CPL filter +4 * adpter rings(67mm/72mm/77mm/82mm)+ Leather filter bag. Note: Only compatible with K&F Concept X-PRO square filter, general square filters need the use of K&F Concept filter frame. | 【Other Size Adapter Rings】We have 49-62mm X-PRO square system adapter rings, please search code 49mm: B09QKKLPJT, 52mm: B09QKJ1YXD, 55mm: B09QKJXSGQ, 58mm: B09QKKBH84, 62mm: B09QKJPDWY