This ND filter set is a suitable accessory replacemt for GoPro Hero4 Session, great for shooting moving figures and outdoor scenes in strong sunlight. Features: 4 filters(ND2/ND4/ND8/ND16) in one pack, accessory replacement for GoPro Hero4 Session. Reduce light intensity, avoid overexposure and slow down shutter speed. Highly permeable ND filters, ensure high transmittance. Comes with a filter mounting frame for installation, a lanyard for hooking, and a piece of cleaning cloth for wiping. Specifications: Brand: Andoer Filter Type: ND2 / ND4 / ND8 / ND16 Compatible Camera Type: Replacement for GoPro Hero4 Session Filter Material: Highly Permeable Resin Filter Mounting Frame Material: PC Item Size: 3.7 * 3.7 * 0.2cm / 1.5 * 1.5 * 0.1in Item Weight: 2.5g / 0.1oz Package Size: 7.5 * 7.5 * 4cm / 3 * 3 * 1.5in Package Weight: 38g / 1.3oz Package List: 1 * ND2 Filter 1 * ND4 Filter 1 * ND8 Filter 1 * ND16 Filter 1 * Filter Mounting Frame 1 * Lanyard 1 * Cleaning Cloth Note: Camera is not included.