A wiper blade with a support assembly has a plurality of levers and housed by covers, which enhances the universality of the required parts and reduces the number of the required parts and thus, the cost of fabrication, while allowing the covers to follow the round contour of a surface to be wiped. The wiper blade includes a primary cover and secondary covers pivotally connected to the primary cover. Each of the secondary covers include a lever guide section through which a yoke lever is slidably movable in a direction longitudinally of the wiper blade.