[Minimalist] A multi-functional inflatable sofa

The next time when Xiaobai and Xiahei decorate and move to their new house, they plan to buy a set of furniture products like the ones below. They can be used for multiple purposes, and also save space when not in use - achieving two goals at once! By the way, there is another great use, when you go camping or cool off at the park, take it with you, and you can enjoy the feeling of a sofa bed outdoors as well.