Just bought this dslr lens kit, what are these pieces used for?

I have a Nikon D3200 and received some pieces in my kit that I have no clue what it is used for and there's no description on it.

The two lens-looking things in the top left corner are likely macro, wide-angle, or telephoto filters that will screw into the end of your kit lens.

The JJC remote is an infrared remote trigger with a range of probably about 20 feet.

The stack of filters in the top right corner looks like a set of close-up filters (meaning the first two in the top left corner are probably wide-angle and telephoto)

The filters that take up most of the second row are in order of appearance: a UV filter (commonly referred to as a protection filter as it doesn't change your picture, only protects your lens), a polarizing filter, a magenta filter (for shooting in rooms lit by fluorescent tubes), a graduated warming filter and a graduated cooling filter. I have no idea what the next thing is. Maybe a screw-in lens hood?

The beginning of the third row down is a lens cap. Next is a ring of some sort that screws into your lens. It might be a reverse ring so you can mount another lens backwards on the end of your lens (a common way to do close-up photos). Next is a lens hood. The blue, yellow, black, and white things are a complete mystery to me.

The last row has a bottle of lens fluid for cleaning your lens (don't spray it onto the lens directly, only onto the cloth). Then a brush for wiping dust off, a blower bulb thing for blowing dust off, a lens pen which is kind of redundant since it has a brush and a tip for cleaning your lens. Next is a cap leash which attaches to your lens cap and your lens barrel, so your cap just hangs below the lens when it's not in place, making it harder to lose. Lastly is microfiber cloths for cleaning your lens and LCD.

To add to Andrew's answer, the things he does not know what they are, (where the arrow is pointing), are pop up flash diffusers. The bracket slides into the hot shoe on top of the camera and the curved plastic pieces mount onto the bracket in front of the open pop up flash. Their purpose is to diffuse and soften the light from the pop up flash for better looking flash photos. I have found these things to work very poorly and they also "eat" up tons of flash power. The different colors are to compensate for different light conditions. The white is for normal use, the yellow and blue are for tungsten and fluorescent light, but you have to adjust the camera white balance and use the flash as a fill source to use those. I suggest just using the white, but don't expect miracles from it. It will soften the light on your subject somewhat, but a LOT of light bounces back into your face and the distance capability of the flash is greatly reduced. One other point, if the bracket is not designed correctly, when you place it into the hot shoe, it can disable the pop up flash from even opening, (the camera thinks an external flash is mounted and so the pop up will not open).

Probably, you will find those things are just trash can fillers.

Someone added a bunch of pretty much useless "accessories" in order to get you to buy your fine camera from them vs other camera seller.

I suggest you visit a proper camera shop and ask them

The first item looks like an on camera diffusion kit that includes filters for different type films (daylight balanced for incandescent and incandescent balanced for daylight) This of course are mostly useless since your camera has preset white balance options, so no filters are necessary to correct white balance (including most of the filters they sent you. Only the UV (used to protect the lens from sticky fingers), circular polarizing filter (to reduce refection when shooting in full sun) and if included, the and lens do you can increase exposure times under different conditions.

The second item is a cheesy device that attaches to your lens cap and lens to keep the lens cap from becoming lost. Only absolute beginning photographers lose their lens caps. Everyone else places them in their in the bag where they carry their cameras and lenses.

Sadly, most sellers of cameras who add these "accessories" sell grey market cameras and lenses, which become your problem if you ever need warranty work done on the camera/lens

The D3200 is an amazing camera and can keep you busy learning the fundamentals of photography.

Here are two links you will find helpful.

http://camerasim.com/apps/camera-simulator/

http://photoinf.com/General/Robert_Berdan/Composition_and_the_Elements_of_Visual_Design.htm