Description:K&F Concept products are made of high-impact plastic for extra durability. They can maximum present professional style photography. They can enhance colors and reduce reflections and can simply protect lenses successfully.UV Filters:a. Protect the lens and filter the harm light、 especially ultraviolet.b. It is suitable for seaside、 mountains、 snowfield and some other open field to weaken blue cast caused by ultraviolet and reduce haze and improve contrast to your video and digital images.c. Imported optical glass、 top level of transmittanceCPL Filter:a. Filter reflection rays and enhance image contrast. b. Reduce or eliminate the reflections from non-metal surface in order to improve image quality and improve the clarity of images.c. Removes unwanted reflections from non-metallic surfaces such as water or glass and glare from the sun.d. Improve the saturability of color and contrast to achieve deep and rich scenic images effectND4 Filter:a. Reduces the amount of light reaching the film without affecting the color.b. Applies slow shutter speed under strong sunlight exposure. c. Allows wider apertures、 effectively decreasing depth of fieldd. Imported optical glass、 top level of transmittance FLD Filter a. FLD Removes the harsh yellow-green cast and gives nature light effect under fluorescent lightb. Increases color saturation of subjects when shooting under natural lightc. Rapidly absorbs water on the surface of glass、 filters or lensd. Made of optical resinLens Hood a. Provides extra protection to your lens from accidental bumps or scratches.b. Made of high impact plastic for an extremely solid and lightweight feel.c. Help prevent those circles of light that can accompany images where a strong light source is just outside the frame.Microfiber ClothIdeal for cleaning oil and dirt off eyeglasses、 iPhone/iPad and other touch screens、 binocular lenses、 digital SLR and other camera lenses、 GPS devices、 and other delicate opticsCompatible With: This kit is compatible with 52MM lenses only. Lens sizes vary regardless of camera brand or model. Your camera's lens thread size will be marked somewhere on the lens barrel or printed underneath your lens cap. This number is always preceded by a "?" (diameter) symbolKindly Note: If you don't known your lens thread size、 please click the picture for help.Package included items:1*UV filter 1*FLD Filter1*ND4 Filter1*CPL Filter1* Lens Hood1* 4-slot Filter Case1* Microfiber Cleaning Cloth 1*Lens Cap with Keeper Holder1*Cleaning Pen