A slider body of a slider includes a slider main member and a slider sub-member. The slider main member includes at least a portion of a first blade and at least a portion of a second blade which are connected to each other through a guide column. The slider sub-member includes a pair of first flange sections and is assembled with and fixed to the slider main member. The slider can easily be attached to a fastener chain. Since the slider stably has a predetermined distance between the first and second blades, it is possible to secure satisfactory sliding properties and operability of the slider.