These cardboard series, designed by Heikki Ruoh for Showroom Finland, satisfy my cardboard obsession completely. They are light, eco-friendly and very beautiful indeed. Made out of special kind of cardboard, these pieces can be recycled as paper, yet they are sturdy and functional. Water based adhesives are used to create the material’s sandwich-like construction, so it is perfectly safe and non-toxic. The items arrive to you flat, and can be simply folded into their shapes. No glue or screws required. Perfect for rental apartments or dorms.