Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: why is it listed as black when all the pictures show chrome finish?
Document: However, you cannot buy extra shelves in the Anthracite finish anywhere. I even checked with the manufacturer and they are do not sell extra shelves for that finish. It is easy to get Chrome or Black (manufacturer # ends in BL). That's a major disappointment for me. If you think you might need extra shelves, consider getting a different finish.4/10/14 Edit: I now have three of these shelving units.
They are nicely designed, easy to put together, quite attractive with a black doppling over the chrome making them very subtle, and most of all very flexible and very useable! Thank you Alera and United Stationers, and I expect to order at least another pair and will extole them at all cocktail parties.
We use these in the basement with the wheels they are great. We can move them when needed. I love the black anthracite, much nicer than the shinny chrome look for us anyway. Some of the boxes where missing the wrench to put them together but we ordered a few so it didnt matter to us. Most people will have the right tool to use anyway. Will be getting more for the garage.
I bought for for organizing in my basement. Assembly is easy but goes much better with two people. The option to use casters or leveling feet is very nice, as is the black finish. Just make sure that this has the number of shelves you want for your purposes. I have low ceilings, so the top shelf has to sit below the top of the frame to be useful. As a result, four shelves is fine.
I have assembled at least nine of these units between my shed and garage. The parts are always there and the units are easy to assemble. You can' beat the price! I have used these shelves to organize and empty rooms into a shed to reclaim my home. It is strange how space fills up when the kids leave home. The wheels make the units easy to move around the shed and garage as needed. The finish is goldish, speckaled-black and seems quite durable for outside.
Quality, well made and easy to assemble. Appears to have a durable finish. Rolls easy with full shelves. Gives alot of storage options and can be assembled w/o wheels, casters included.
Very strong, stable, good finish. I use 4 of these in my storage room of the garage. I can easily move them even when full of boxes. I will probably order another. Highly recommended.
Rarely do you buy something that is the cheapest in its category and then ends up being one of the best quality-wise. Shelves came packaged well, were easy to put together and had an AWESOME speckled silver- grey finish. Honestly this looks good enough to use as furniture. Plus the huge bonus were the heavy duty casters that rolls the unit around very easily. I would recommend highly.
This review is for Alera# SW604818BA 18x48x6ft but other Aleras are very similar: Screw-together posts, fast (well under 2 hours) easy assembly, all-welded heavy wire shelves, nice, permanent finish. As an engineer I say it's an excellent, sturdy design. // My first buy was two units. Only a couple of holes were in the cardboard boxes UPS delivered. It was a different story inside!! On one shelf, both girder-like sides were neatly bent up 20 degrees.
Absolutely wonderful item...assembly was a breeze with the exception of the directions...no words, just pictures that were extremely hard to see as they appeared faded. But got two of them put together and just ordered another two...YEAH MAN
Answer: When I received mine I was expecting the chrome also. The black are very nice and I am happy with them. The black color is not a solid black