The ages between 4~6 are the golden years for children to learn swimming, by this time, parents are likely to take their children to swimming pools allowing them to get used to water, furthermore, even learn to kick or float on water, helpful towards swimming lessons taken in the future and to avoid the fear of learning how to swim. ?Swimming Sitter?is a complete set of swimming equipment designed for beginners and provides use throughout the growth of children, a transformation between seat floats, armpit floats and arm floats may be made throughout the whole process, while parents may interact with and help their children obtain and lay complete foundation and basic skills while young, meanwhile, the increase of life spam of the equipment may decrease and avoid the waste of material.