ND Filter Lens:1. ND filter lens are used to reduce the amount of light that reaches the sensor of the smart phone camera, thereby decreasing the shutter speed in order to reduce motion blur and or reduce depth of field in very conditions2. Perfect for water flow, traffic flow, ocean, clouds, human streaming and other moving photography.3. Portable and detachable, you can take pictures with your devices at any time, traveling with this lens at ease.4. A step -on design, easy to lens steady and firm on your device for use.5. ND 2-400 Lens is also adaptable for 37mm wire digital camera.6. Compatible with 6/6 S 6 Plus / 6 S Plus 5 5C 5 S 4 S 4 Tablets and other smartphones thatthe distance between his camera lens and its top is less than 1 "."Color: blackMaterial: PlasticPackage Contents:1 x 37mm Lens ND 2-4001 x Universal Lens 1 x Microfiber ToteOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.