In the 21st century, the sports industry has been widely regarded as one of the "most dynamic and promising pillar industries". The global sports industry has been industrialized for a short period of time, but the overall sports industry has developed rapidly and the market scale has continued to expand. In recent years, with the strengthening of national fitness and health awareness, the next ten years will inevitably be the best era for the fitness industry. A recent survey report shows that 62% of people want to keep fit while exercising, 33.5% want to lose weight and get a good image, and the remaining 4.5% of respondents said they want to build social relationships through fitness and other purposes. Thus, for fitness enthusiasts, which of the following gifts is your favourite?