by Miryam Muller in ,

Israeli engineer and systems developer Izhar Gafni has invented a cardboard bicycle that’s strong, waterproof and costs less than £10 to manufacture.

Gafni started developing the Cardboard Bicycle three years ago. “The idea is like Japanese origami,” he says in the movie. “You fold it once and then it doesn’t become twice the strength, it’s almost three times the strength. So I took it from there and did the same thing with cardboard.”

The “urban bike” for adults costs around £6 per unit and weighs 9kg, while the kids’ bike costs £3 per unit and weighs 3.5kg. Both are made almost entirely from recycled materials and cyclists will also have the option to add an electric motor, according to the designer.