We were updating our podcast studio and added these barrel chairs as they have a classic design and multiple color options.  Very easy to assemble, Allen wrench is included. Base is shipped in the chair portion and wrapped wrapped in a cloth drawstring bag.  Turn the chair over, attach the base with 4 bolts and they are ready for placement.  Very lightweight, easy to move around and comfortable.  Ours are sitting on a wooden floor so they are stable.  I am not sure how they would rest on a high pile carpet due to the weight and style of base.