In the video, a person is seen sitting on a black office chair. The chair has a black cushion and a black base. The person is wearing a black shirt and is sitting on the chair with their hands on the armrests. The chair is placed in a room with a wooden floor and a white wall in the background. The person appears to be adjusting the chair's height by pushing down on the lever under the seat. The chair's armrests are also adjustable, and the person is seen moving them up and down. The video does not show any other objects or people in the room.