The barrel is a rounded structure with steel tightening bands. Inside the barrel a slightly elevated area is sleeping space for 2 persons (2 x 2 meters). There is a door with a lock, a hexagon shaped window, and an opening window in the back wall. There is sitting space with 2 benches and a sliding fold away table.

When the table is slid away, a space is available which can be made into a sleeping space for a child, with the wooden slats which are stored below the sleeping space placed between the two side benches as a support for a fold away matress (length 1.9 x width 0.7meters).

Small benches at the entrance.