Retro is a Latin word which means return. This design of umbrella knob is the first project of our studio Haoyuli Design which was founded by Steffen and me in Oldenburg. It won big portion in Hong Kong and Taiwan markets. A new technology of closing umbrella was applied in this design. My client bought this intellectual property from Russian weapon engineering company. The first model was finished in HFK Bremen and I came across the real sample in Hong Kong Daily Goods Expo in 2006. The one in the picture is a souvenir bought from Taiwan on a rainy day in 2011.