The theme of the exhibition is to raise the concern of upcycling and sustainability of SmartHK visitors. Designers and artists are invited to make use of used bike parts and transform them into a product or an art work. Considering bicycle as one of the most eco-friendly transportation, we believe it would be meaningful if we could create an artwork to raise people’s concern on the enovironment from disposed bike parts. Aiming to remind people how simple it could be to relax without harming the environment, we created an interactive installation consisted of a used bicycle wheel with just some glasses of water. A lovely music will be played when a visitor turns the wheel with only a simple gesture.