Exactly what I thought. At first my godchild saw them and said I love your grey bar stools. They are supposed to be brown. Which after they were put together and in the space they do look brown. 
They were very easy to put together, it does need two people to put them together though. Well worth the money.  I did order stain guard and will not use them until I spray them. 
They do swivel but not 360, probably more like 180 on one side and the same for the other side.