Inline skate & Heelys presented the cultural trend to youth with tremendous popularity. However, they are facing limits to fulfill customer&＃039;s further demands. Customers between teenagers and thirties explore more dynamic and adventurous leisure activities, and developments and investments will be increased since the propensity of consume has its importance in quality of life. RS-1 is a whole new concept, which young people can enjoy adventures and healthy activities. It solved problems of &＃039;Inline skate&＃039;s carrying difficulties&＃039;,&＃039;Discomfort of Heelys when walking&＃039; and &＃039;Defect of no mixture with other shoes&＃039;. Moreover, it is designed to maximize the efficiency of exercise. We wish RS-1 to be a significant tool for every age to enjoy their leisure sports activities.</p>