Backrest and seat: seat upholstered on both sides or with plywood seat bottom, backrest upholstered with plywood background. Frame: wooden side panel. Foldable writing tablet in side the side panel or on the back of the seat. Wooden parts: birch, beech, ash, maple, oak etc. Laquered or stained with the desired colour. Metal parts: epoxy painted with the desired Ral colour