Does exactly what it says on the label! It's not too complicated to put together, however is a heavy piece of kit, especially the top plate where two people is handy to put the bolts in place. It is tall if you plan to use it while seated and you don't have a separate keyboard to put on the lower shelf - the higher shelf is just too tall to use comfortably with a laptop while seating if you're shorter than 6 foot. Like others have said you need to hold it while lowering or it can drop. But overall, it's easy to move, a good size for a flat in London and it is really sturdy with each wheel being capable of locking. I personally use it to write on at an angle and have rested with my weight on the top plate for some time without it moving. Recommend if you're in the market for a standing desk on the cheaper end of the market!